diff --git a/include/noun/allocate.h b/include/noun/allocate.h
index 294a40b01..58f4a1c8f 100644
--- a/include/noun/allocate.h
+++ b/include/noun/allocate.h
@@ -130,6 +130,7 @@
         struct {                              //  jet dashboard
           u3p(u3h_root) war_p;                //  warm state
           u3p(u3h_root) cod_p;                //  cold state
+          u3p(u3h_root) han_p;                //  hank cache
         } jed;
 
         struct {                              // bytecode state
diff --git a/include/noun/jets.h b/include/noun/jets.h
index 69bf69262..fad8d354a 100644
--- a/include/noun/jets.h
+++ b/include/noun/jets.h
@@ -111,13 +111,22 @@
         void
         u3j_clear(void);
 
+      /* u3j_cook():
+      **
+      **   Execute hook from core, call site cached by arbitrary c string
+      */
+        u3_noun
+        u3j_cook(const c3_c* key_c,
+                 u3_noun     cor,
+                 const c3_c* tam_c);
+
       /* u3j_hook():
       **
       **   Execute hook from core. 
       */
         u3_noun
         u3j_hook(u3_noun     cor,
-                   const c3_c* tam_c);
+                 const c3_c* tam_c);
 
       /* u3j_soft():
       **
@@ -125,7 +134,7 @@
       */
         u3_noun
         u3j_soft(u3_noun     cor,
-                   const c3_c* tam_c);
+                 const c3_c* tam_c);
 
       /* u3j_spot():
       **
@@ -191,7 +200,7 @@
       /* u3j_reap(): promote jet state.  RETAINS.
       */
         void
-        u3j_reap(u3p(u3h_root) cod_p, u3p(u3h_root) war_p);
+        u3j_reap(u3p(u3h_root) cod_p, u3p(u3h_root) war_p, u3p(u3h_root) han_p);
 
       /* u3j_rite_mine(): mine cor with clu, using u3j_rite for caching
       */
@@ -210,6 +219,11 @@
         void
         u3j_site_copy(u3j_site* dst_u, u3j_site* src_u, c3_o los_o);
 
+      /* u3j_site_ream(): refresh u3j_site after restoring from checkpoint
+      */
+        void
+        u3j_site_ream(u3j_site* sit_u);
+
       /* u3j_site_kick(): kick a core with a u3j_site cache.
        */
         u3_weak
@@ -234,3 +248,13 @@
       */
         c3_w
         u3j_site_mark(u3j_site* sit_u);
+
+      /* u3j_mark(): mark jet state for gc.
+      */
+        c3_w
+        u3j_mark(void);
+
+      /* u3j_free(): free jet state.
+      */
+        void
+        u3j_free(void);
diff --git a/jets/e/mule.c b/jets/e/mule.c
index 99afc0d34..3f74b7326 100644
--- a/jets/e/mule.c
+++ b/jets/e/mule.c
@@ -12,7 +12,7 @@
       return u3m_bail(c3__exit);
     }
     else {
-      u3_noun hok = u3j_hook(u3k(cor), "mute");
+      u3_noun hok = u3j_cook("u3we_mule-mute", u3k(cor), "mute");
 
       /* this takes advantage of the fact that mute's result, at the typeless
        * C/Nock level, is identical to what a typed mule would produce,
diff --git a/jets/f/ap.c b/jets/f/ap.c
index 09cbac822..ad5bddfb7 100644
--- a/jets/f/ap.c
+++ b/jets/f/ap.c
@@ -991,7 +991,7 @@
   _ap_core(u3_noun ter,
            u3_noun gen)
   {
-    u3_noun gat = u3j_hook(u3k(ter), "ap");
+    u3_noun gat = u3j_cook("_ap_core-ap", u3k(ter), "ap");
 
     return u3i_molt(gat, u3x_sam, u3k(gen), 0);
   }
diff --git a/jets/f/ut.c b/jets/f/ut.c
index 7b07aa534..9fcf3ec1a 100644
--- a/jets/f/ut.c
+++ b/jets/f/ut.c
@@ -14,7 +14,7 @@
              u3_noun     typ)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(typ), 0);
-    u3_noun ret = u3j_hook(u3k(von), "dune");
+    u3_noun ret = u3j_cook("u3qfu_duck-dune", u3k(von), "dune");
 
     u3z(von);
     return ret;
@@ -28,7 +28,7 @@
              u3_noun     typ)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(typ), 0);
-    u3_noun duq = u3j_hook(u3k(von), "dunk");
+    u3_noun duq = u3j_cook("u3qfu_dung-dunk", u3k(von), "dunk");
     u3_noun ret = u3i_molt(u3k(duq), u3x_sam, u3k(paz), 0);
 
     u3z(duq);
@@ -44,7 +44,7 @@
              u3_noun     typ)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(typ), 0);
-    u3_noun duq = u3j_hook(u3k(von), "dunk");
+    u3_noun duq = u3j_cook("u3qfu_dunq-dunk", u3k(von), "dunk");
     u3_noun paz = u3i_string(paz_c);
     u3_noun ret = u3i_molt(u3k(duq), u3x_sam, u3k(paz), 0);
 
@@ -77,7 +77,7 @@
   u3qfu_shew(u3_noun van,
              u3_noun mol)
   {
-    u3_noun sho = u3j_hook(u3k(van), "show");
+    u3_noun sho = u3j_cook("u3qfu_shew-show", u3k(van), "show");
     u3_noun ret = u3i_molt(u3k(sho), u3x_sam, u3k(mol), 0);
 
     u3z(sho);
diff --git a/jets/f/ut_buss.c b/jets/f/ut_buss.c
index df62f7367..144046d8a 100644
--- a/jets/f/ut_buss.c
+++ b/jets/f/ut_buss.c
@@ -13,7 +13,7 @@
              u3_noun gen)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "buss");
+    u3_noun gat = u3j_cook("_cqfu_buss-buss", von, "buss");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam_2, 
@@ -29,7 +29,7 @@
              u3_noun gen)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "busk");
+    u3_noun gat = u3j_cook("_cqfu_busk-busk", von, "busk");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam,
diff --git a/jets/f/ut_find.c b/jets/f/ut_find.c
index 430d22e96..935869218 100644
--- a/jets/f/ut_find.c
+++ b/jets/f/ut_find.c
@@ -19,7 +19,7 @@
              u3_noun lap)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "felt");
+    u3_noun gat = u3j_cook("u3qfu_felt-felt", von, "felt");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam, 
@@ -34,7 +34,7 @@
              u3_noun gen)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "fund");
+    u3_noun gat = u3j_cook("u3qfu_fund-fund", von, "fund");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam_2,
@@ -50,7 +50,7 @@
              u3_noun tor)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "fine");
+    u3_noun gat = u3j_cook("u3qfu_fine-fine", von, "fine");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam, 
diff --git a/jets/f/ut_gain.c b/jets/f/ut_gain.c
index d27ee9a18..509740ab1 100644
--- a/jets/f/ut_gain.c
+++ b/jets/f/ut_gain.c
@@ -10,7 +10,7 @@
              u3_noun gen)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "gain");
+    u3_noun gat = u3j_cook("u3qfu_gain-gain", von, "gain");
 
     return u3n_kick_on(u3i_molt(gat, u3x_sam, u3k(gen), 0));
   }
diff --git a/jets/f/ut_lose.c b/jets/f/ut_lose.c
index 2e3e29b8f..16e9f6c0f 100644
--- a/jets/f/ut_lose.c
+++ b/jets/f/ut_lose.c
@@ -10,7 +10,7 @@
              u3_noun gen)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "lose");
+    u3_noun gat = u3j_cook("u3qfu_lose-lose", von, "lose");
 
     return u3n_kick_on(u3i_molt(gat, u3x_sam, u3k(gen), 0));
   }
diff --git a/jets/f/ut_mint.c b/jets/f/ut_mint.c
index c6c74c07d..b13d05ad8 100644
--- a/jets/f/ut_mint.c
+++ b/jets/f/ut_mint.c
@@ -261,7 +261,7 @@
             u3_noun loc)
   {
     u3_noun mol = u3nc('o', u3k(loc));
-    u3_noun sho = u3j_hook(u3k(van), "show");
+    u3_noun sho = u3j_cook("_mint_loc-show", u3k(van), "show");
     u3_noun ret = u3i_molt(u3k(sho), u3x_sam, u3k(mol), 0);
 
     u3z(mol);
@@ -279,7 +279,7 @@
              u3_noun rig)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "emin");
+    u3_noun gat = u3j_cook("_mint_cnts-emin", von, "emin");
 
     return u3n_kick_on(u3i_molt(gat,
                                 u3x_sam_2,
@@ -839,7 +839,7 @@
         }
         else {
           u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-          u3_noun gat = u3j_hook(von, "blow");
+          u3_noun gat = u3j_cook("_mint_in-blow", von, "blow");
           u3_noun pro;
 
           pro = u3n_kick_on(u3i_molt(gat, 
diff --git a/jets/f/ut_mull.c b/jets/f/ut_mull.c
index b64bfcd8a..197cea7cd 100644
--- a/jets/f/ut_mull.c
+++ b/jets/f/ut_mull.c
@@ -32,7 +32,7 @@
             u3_noun loc)
   {
     u3_noun mol = u3nc('o', u3k(loc));
-    u3_noun sho = u3j_hook(u3k(van), "show");
+    u3_noun sho = u3j_cook("_mull_loc-show", u3k(van), "show");
     u3_noun ret = u3i_molt(u3k(sho), u3x_sam, u3k(mol), 0);
 
     u3z(mol);
@@ -231,7 +231,7 @@
              u3_noun rig)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "emul");
+    u3_noun gat = u3j_cook("_mull_cnts-emul", von, "emul");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam_2, 
diff --git a/jets/f/ut_play.c b/jets/f/ut_play.c
index ed97fcc60..2ab4661a0 100644
--- a/jets/f/ut_play.c
+++ b/jets/f/ut_play.c
@@ -70,7 +70,7 @@
             u3_noun loc)
   {
     u3_noun mol = u3nc('o', u3k(loc));
-    u3_noun sho = u3j_hook(u3k(van), "show");
+    u3_noun sho = u3j_cook("_play_loc-show", u3k(van), "show");
     u3_noun ret = u3i_molt(u3k(sho), u3x_sam, u3k(mol), 0);
 
     u3z(mol);
@@ -107,7 +107,7 @@
              u3_noun rig)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "epla");
+    u3_noun gat = u3j_cook("_play_cnts-epla", von, "epla");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam_2, 
diff --git a/jets/f/ut_tack.c b/jets/f/ut_tack.c
index 6aebab50b..9328c43ae 100644
--- a/jets/f/ut_tack.c
+++ b/jets/f/ut_tack.c
@@ -10,7 +10,7 @@
              u3_noun mur)
   {
     u3_noun von = u3i_molt(u3k(van), u3x_sam, u3k(sut), 0);
-    u3_noun gat = u3j_hook(von, "tack");
+    u3_noun gat = u3j_cook("u3qfu_tack-tack", von, "tack");
 
     return u3n_kick_on(u3i_molt(gat, 
                                 u3x_sam_2, 
diff --git a/noun/jets.c b/noun/jets.c
index 0d8a33067..ca1c72c96 100644
--- a/noun/jets.c
+++ b/noun/jets.c
@@ -727,11 +727,12 @@ _cj_hook_in(u3_noun     cor,
 */
 u3_noun
 u3j_soft(u3_noun cor, 
-           const c3_c* tam_c)
+         const c3_c* tam_c)
 {
   u3_noun pro;
-
+  u3t_on(glu_o);
   pro = _cj_hook_in(cor, tam_c, c3n);
+  u3t_off(glu_o);
   return pro;
 }
 
@@ -739,14 +740,147 @@ u3j_soft(u3_noun cor,
 */
 u3_noun
 u3j_hook(u3_noun     cor,
-           const c3_c* tam_c)
+         const c3_c* tam_c)
 {
   u3_noun pro;
-
+  u3t_on(glu_o);
   pro = _cj_hook_in(cor, tam_c, c3y);
+  u3t_off(glu_o);
   return pro;
 }
 
+typedef struct {
+  u3_weak  hax;
+  u3j_site sit_u;
+} _cj_hank;
+
+static _cj_hank*
+_cj_hank_find(u3_noun pre, u3_noun tam)
+{
+  u3_noun key = u3nc(u3k(pre), u3k(tam));
+  u3_noun got = u3h_git(u3R->jed.han_p, key);
+  if ( u3_none != got ) {
+    u3z(key);
+    return u3to(_cj_hank, got);
+  }
+  else {
+    _cj_hank* new_u = u3a_walloc(c3_wiseof(_cj_hank));
+    u3a_road* rod_u = u3R;
+    while ( rod_u->par_p && u3_none == got ) {
+      rod_u = u3to(u3a_road, rod_u->par_p);
+      got   = u3h_git(u3R->jed.han_p, key);
+    }
+    if ( u3_none == got ) {
+      new_u->hax = u3_none;
+    }
+    else {
+      _cj_hank* old_u = u3to(_cj_hank, got);
+      if ( u3_none != (new_u->hax = old_u->hax) ) {
+        u3j_site_copy(&(new_u->sit_u), &(old_u->sit_u), c3n);
+      }
+    }
+    u3h_put(u3R->jed.han_p, key, u3a_outa(new_u));
+    u3z(key);
+    return new_u;
+  }
+}
+
+static c3_o
+_cj_hank_fine(_cj_hank* han_u, u3_noun cor, u3_noun *inn)
+{
+  u3_noun hax = han_u->hax;
+  if ( u3_none == hax ) {
+    return c3n;
+  }
+  else {
+    *inn = u3r_at(hax, cor);
+    if ( u3_none == *inn ) {
+      return c3n;
+    }
+    else {
+      u3j_site* sit_u = &(han_u->sit_u);
+      c3_assert(u3_none != sit_u->loc);
+      return _cj_fine(*inn, sit_u->fin_u);
+    }
+  }
+}
+
+static void
+_cj_hank_lose(_cj_hank* han_u)
+{
+  if ( u3_none != han_u->hax ) {
+    u3z(han_u->hax);
+    u3j_site_lose(&(han_u->sit_u));
+  }
+}
+
+static u3_noun
+_cj_hank_fill(_cj_hank* han_u, u3_noun tam, u3_noun cor)
+{
+  u3_weak   loc, col;
+  u3_noun   got, pat, nam, huc;
+  u3_noun   hax = 1;
+  u3j_site* sit_u = &(han_u->sit_u);
+
+  if ( c3n == u3du(cor) ) {
+    return u3m_bail(c3__fail);
+  }
+
+  if ( u3_none == (col = loc = _cj_spot(cor)) ) {
+    return u3m_bail(c3__fail);
+  }
+
+  while ( 1 ) {
+    u3x_trel(loc, &pat, &nam, &huc);
+    got = u3qdb_get(huc, tam);
+    if ( u3_nul != got ) {
+      u3_noun fol = u3k(u3t(got));
+      u3z(got);
+      sit_u->bat   = u3k(u3h(cor));
+      sit_u->loc   = u3k(loc);
+      sit_u->fin_u = _cj_cast(cor, loc);
+      sit_u->fon_o = c3y;
+      if ( 0 == (sit_u->axe = _cj_axis(fol)) ) {
+        sit_u->jet_o = c3n;
+        sit_u->pog_u = u3n_find(fol);
+      }
+      else {
+        han_u->sit_u.pog_u = u3n_find(u3r_at(sit_u->axe, cor));
+        han_u->sit_u.jet_o = _cj_nail(loc, sit_u->axe,
+            &(sit_u->lab), &(sit_u->cop_u), &(sit_u->ham_u));
+      }
+      u3z(fol);
+      u3z(col);
+      han_u->hax = hax;
+      return cor;
+    }
+    else if ( c3n == u3h(pat) ) {
+      u3_noun dyn = u3t(pat),
+              axe = u3h(dyn),
+              xah;
+      cor = u3r_at(axe, cor);
+      loc = u3t(dyn);
+      xah = u3qc_peg(axe, hax);
+      u3z(hax);
+      hax = xah;
+    }
+    else {
+      u3_noun sat = u3t(pat);
+      if ( c3y == u3h(sat) ) {
+        return u3m_bail(c3__fail);
+      }
+      else {
+        u3_noun xah;
+        cor = u3t(cor);
+        loc = u3t(sat);
+        xah = u3qc_peg(3, hax);
+        u3z(hax);
+        hax = xah;
+      }
+    }
+  }
+}
+
 /* u3j_kick(): new kick.
 **
 ** `axe` is RETAINED by the caller; `cor` is RETAINED iff there 
@@ -947,6 +1081,18 @@ u3j_site_copy(u3j_site* dst_u, u3j_site* src_u, c3_o los_o)
   }
 }
 
+/* u3j_site_ream(): refresh u3j_site after restoring from checkpoint
+*/
+void
+u3j_site_ream(u3j_site* sit_u)
+{
+  if ( u3_none != sit_u->loc ) {
+    u3z(sit_u->lab);
+    sit_u->jet_o = _cj_nail(sit_u->loc, sit_u->axe,
+        &(sit_u->lab), &(sit_u->cop_u), &(sit_u->ham_u));
+  }
+}
+
 static u3_weak
 _cj_site_lock(u3_noun cor, u3j_site* sit_u)
 {
@@ -994,14 +1140,11 @@ _cj_site_kick_hot(u3_noun cor, u3j_site* sit_u)
   return pro;
 }
 
-/* u3j_site_kick(): kick a core with a u3j_site cache.
- */
-u3_weak
-u3j_site_kick(u3_noun cor, u3j_site* sit_u)
+static u3_weak
+_cj_site_kick(u3_noun cor, u3j_site* sit_u)
 {
   u3_weak loc, pro;
 
-  u3t_on(glu_o);
   loc = pro = u3_none;
 
   if ( u3_none != sit_u->loc ) {
@@ -1055,6 +1198,47 @@ u3j_site_kick(u3_noun cor, u3j_site* sit_u)
     pro = _cj_site_lock(cor, sit_u);
   }
 
+  return pro;
+}
+
+/* u3j_site_kick(): kick a core with a u3j_site cache.
+ */
+u3_weak
+u3j_site_kick(u3_noun cor, u3j_site* sit_u)
+{
+  u3_weak pro;
+  u3t_on(glu_o);
+  pro = _cj_site_kick(cor, sit_u);
+  u3t_off(glu_o);
+  return pro;
+}
+
+/* u3j_cook(): Execute hook from core, call site cached by arbitrary c string
+*/
+u3_noun
+u3j_cook(const c3_c* key_c,
+         u3_noun     cor,
+         const c3_c* tam_c)
+{
+  u3_noun pro, key, tam, inn;
+  _cj_hank* han_u;
+
+  u3t_on(glu_o);
+  key = u3i_string(key_c);
+  tam = u3i_string(tam_c);
+  han_u = _cj_hank_find(key, tam);
+  if ( c3n == _cj_hank_fine(han_u, cor, &inn) ) {
+    _cj_hank_lose(han_u);
+    inn = _cj_hank_fill(han_u, tam, cor);
+  }
+  pro = _cj_site_kick(u3k(inn), &(han_u->sit_u));
+  if ( u3_none == pro ) {
+    pro = u3n_burn(inn, han_u->sit_u.pog_u);
+  }
+  u3z(cor);
+  
+  u3z(key);
+  u3z(tam);
   u3t_off(glu_o);
   return pro;
 }
@@ -1062,15 +1246,21 @@ u3j_site_kick(u3_noun cor, u3j_site* sit_u)
 /* u3j_kink(): kick either by jet or by nock.
 */
 u3_noun
-u3j_kink(u3_noun cor,
-           u3_noun axe)
+u3j_kink(u3_noun cor, u3_noun axe)
 {
   u3_weak pro = u3j_kick(cor, axe);
 
   if ( u3_none != pro ) {
     return pro;
-  } else {
-    return u3n_nock_on(cor, u3nq(9, axe, 0, 1));
+  }
+  else {
+    u3_weak fol = u3r_at(axe, cor);
+    if ( u3_none == fol ) {
+      return u3m_bail(c3__exit);
+    }
+    else {
+      return u3n_nock_on(cor, u3k(fol));
+    }
   }
 }
 
@@ -1387,13 +1577,44 @@ _cj_cold_reap(u3_noun kev)
   u3z(ser); u3z(bat);
 }
 
+static void
+_cj_hank_reap(u3_noun kev)
+{
+  u3_noun   key   = u3a_take(u3h(kev));
+  u3_noun   got   = u3h_git(u3R->jed.han_p, key);
+  _cj_hank* nah_u = u3to(_cj_hank, u3t(kev));
+  _cj_hank* han_u;
+
+  if ( u3_none != got ) {
+    if ( u3_none != nah_u->hax ) {
+      u3_weak old;
+      han_u = u3to(_cj_hank, got);
+      old = han_u->hax;
+      han_u->hax = u3a_take(nah_u->hax);
+      u3j_site_copy(&(han_u->sit_u), &(nah_u->sit_u), c3y);
+      if ( u3_none != old ) {
+        u3z(old);
+      }
+    }
+  }
+  else if ( u3_none != nah_u->hax ) {
+    han_u      = u3a_walloc(c3_wiseof(_cj_hank));
+    han_u->hax = u3a_take(nah_u->hax);
+    u3j_site_copy(&(han_u->sit_u), &(nah_u->sit_u), c3n);
+    u3h_put(u3R->jed.han_p, key, u3a_outa(han_u));
+  }
+
+  u3z(key);
+}
+
 /* u3j_reap(): promote jet state.
 */
 void
-u3j_reap(u3p(u3h_root) cod_p, u3p(u3h_root) war_p)
+u3j_reap(u3p(u3h_root) cod_p, u3p(u3h_root) war_p, u3p(u3h_root) han_p)
 {
   u3h_walk(cod_p, _cj_cold_reap);
   u3h_walk(war_p, _cj_warm_reap);
+  u3h_walk(han_p, _cj_hank_reap);
 }
 
 /* _cj_ream(): ream list of battery registry pairs. RETAIN.
@@ -1481,7 +1702,13 @@ _cj_warm_tap(u3_noun kev, void* wit)
   *rel = u3nc(u3k(kev), *rel);
 }
 
-/* u3j_ream(): rebuild warm state
+static void
+_cj_ream_hank(u3_noun kev)
+{
+  u3j_site_ream(&(u3to(_cj_hank, u3t(kev))->sit_u));
+}
+
+/* u3j_ream(): rebuild jet state
 */
 void
 u3j_ream(void)
@@ -1493,6 +1720,8 @@ u3j_ream(void)
   u3h_walk_with(u3R->jed.cod_p, _cj_warm_tap, &rel);
   _cj_ream(rel);
   u3z(rel);
+
+  u3h_walk(u3R->jed.han_p, _cj_ream_hank);
 }
 
 static c3_w
@@ -1569,6 +1798,53 @@ u3j_site_mark(u3j_site* sit_u)
   return tot_w;
 }
 
+static void
+_cj_mark_hank(u3_noun kev, void* dat)
+{
+  c3_w* tot_w = (c3_w*) dat;
+  _cj_hank* han_u = u3to(_cj_hank, u3t(kev));
+  *tot_w += u3a_mark_ptr(han_u);
+  if ( u3_none != han_u->hax ) {
+    *tot_w += u3a_mark_noun(han_u->hax);
+    *tot_w += u3j_site_mark(&(han_u->sit_u));
+  }
+}
+
+/* u3j_mark(): mark jet state for gc.
+*/
+c3_w
+u3j_mark(void)
+{
+  c3_w tot_w = 0;
+  tot_w += u3h_mark(u3R->jed.war_p);
+  tot_w += u3h_mark(u3R->jed.cod_p);
+  tot_w += u3h_mark(u3R->jed.han_p);
+  u3h_walk_with(u3R->jed.han_p, _cj_mark_hank, &tot_w);
+  return tot_w;
+}
+
+static void
+_cj_free_hank(u3_noun kev)
+{
+  _cj_hank* han_u = u3to(_cj_hank, u3t(kev));
+  if ( u3_none != han_u->hax ) {
+    u3z(han_u->hax);
+    u3j_site_lose(&(han_u->sit_u));
+  }
+  u3a_wfree(han_u);
+}
+
+/* u3j_free(): free jet state.
+*/
+void
+u3j_free(void)
+{
+  u3h_walk(u3R->jed.han_p, _cj_free_hank);
+  u3h_free(u3R->jed.war_p);
+  u3h_free(u3R->jed.cod_p);
+  u3h_free(u3R->jed.han_p);
+}
+
 /*  XX FIXME: move to u3.md
 |%
 +=  location    $:  pattern=(each static dynamic)
diff --git a/noun/manage.c b/noun/manage.c
index 29e2f69c6..5334ee227 100644
--- a/noun/manage.c
+++ b/noun/manage.c
@@ -460,6 +460,7 @@ _pave_parts(void)
   u3R->cax.har_p = u3h_new();
   u3R->jed.war_p = u3h_new();
   u3R->jed.cod_p = u3h_new();
+  u3R->jed.han_p = u3h_new();
   u3R->byc.har_p = u3h_new();
 }
 
@@ -469,8 +470,7 @@ c3_w
 u3m_mark(void)
 {
   c3_w tot_w = 0;
-  tot_w += u3h_mark(u3R->jed.war_p);
-  tot_w += u3h_mark(u3R->jed.cod_p);
+  tot_w += u3j_mark();
   tot_w += u3n_bark();
   tot_w += u3a_mark_noun(u3R->ski.gul);
   tot_w += u3a_mark_noun(u3R->bug.tax);
@@ -509,8 +509,7 @@ void
 u3m_clear(void)
 {
   u3h_free(u3R->cax.har_p);
-  u3h_free(u3R->jed.war_p);
-  u3h_free(u3R->jed.cod_p);
+  u3j_free();
   u3n_bree();
 }
 
@@ -799,13 +798,14 @@ u3m_love(u3_noun pro)
   {
     u3p(u3h_root) cod_p = u3R->jed.cod_p;
     u3p(u3h_root) war_p = u3R->jed.war_p;
+    u3p(u3h_root) han_p = u3R->jed.han_p;
     u3p(u3h_root) byc_p = u3R->byc.har_p;
 
     u3m_fall();
 
     pro = u3a_take(pro);
 
-    u3j_reap(cod_p, war_p);
+    u3j_reap(cod_p, war_p, han_p);
     u3n_beep(byc_p);
 
     u3R->cap_p = u3R->ear_p;
diff --git a/noun/nock.c b/noun/nock.c
index 9ffb15de9..9f1553858 100644
--- a/noun/nock.c
+++ b/noun/nock.c
@@ -2317,12 +2317,7 @@ _n_ream(u3_noun kev)
   c3_w i_w;
   u3n_prog* pog_u = u3to(u3n_prog, u3t(kev));
   for ( i_w = 0; i_w < pog_u->cal_u.len_w; ++i_w ) {
-    u3j_site* sit_u = &(pog_u->cal_u.sit_u[i_w]);
-    if ( u3_none != sit_u->loc ) {
-      u3z(sit_u->lab);
-      sit_u->jet_o = u3j_nail(sit_u->loc, sit_u->axe,
-          &(sit_u->lab), &(sit_u->cop_u), &(sit_u->ham_u));
-    }
+    u3j_site_ream(&(pog_u->cal_u.sit_u[i_w]));
   }
 }