diff --git a/v4/tests/test_host_unit.c b/v4/tests/test_host_unit.c
index 8f876f9c..48ff5f16 100644
--- a/v4/tests/test_host_unit.c
+++ b/v4/tests/test_host_unit.c
@@ -12,7 +12,9 @@
  * rom_harness.h).  That system, assembled, is the nucleus capsule: a node
  * that is born is given assembled code, never the source (Captain Bob,
  * 2026-10-15).  Hera is born empty and is given it through the port her
- * requests go to.  She is told who she is,
+ * requests go to.  She carries the host's ROM; a node she births carries a
+ * mesh node's, the shared math only (MACHINE.md 2.2), at the same entries.
+ * She is told who she is,
  * given the words that ask for nodes (v4/include/v4/manage.h), FORTH-79,
  * POST, and her own capsule, capsules/v4/hera.4th.  Then she is told
  * `10 UNIT`, and everything after that is hers: she asks for four nodes,
@@ -143,7 +145,11 @@ static int host_born(void *self)
     v4_node_stack_regs_attach(&pool[k].n, DSTACK_REG, RSTACK_REG);
     v4_node_error_attach(&pool[k].n, NODE_ERROR);
     v4_node_fault_attach(&pool[k].n, w_fault);
-    v4_node_rom_attach(&pool[k].n, ROM_IMAGE, ROM_IMAGE_WORDS);   /* the nucleus calls its math in the ROM (MACHINE.md 2.2) */
+    /* Hera, who is made first, is the host's node and carries its ROM; a
+     * node she births carries a mesh node's (MACHINE.md 2.2).  The nucleus
+     * calls its math at the same entries in either. */
+    if (k == 0) v4_node_rom_attach(&pool[k].n, ROM_IMAGE, ROM_IMAGE_WORDS);
+    else        v4_node_rom_attach(&pool[k].n, MESH_ROM, MESH_ROM_WORDS);
     v4_blocks_init(&node_blocks[k], BUF0_W);
     if (k != 0) {                                    /* Hera's kernel is wired where she is made */
         node_kernel[k].take = node_kernel_take; node_kernel[k].give = 0; node_kernel[k].self = &pool[k];
@@ -458,6 +464,14 @@ int main(void)
         CHECK(i == 5, "and execute nothing while they wait");
     }
 
+    /* ---- the nodes she births carry a mesh node's ROM (MACHINE.md 2.2) ---- */
+    CHECK(node_numbered(10)->rom == ROM_IMAGE && node_numbered(11)->rom == MESH_ROM && node_numbered(12)->rom == MESH_ROM
+          && node_numbered(13)->rom == MESH_ROM && node_numbered(14)->rom == MESH_ROM,
+          "Hera carries the host's ROM, and the four she birthed a mesh node's");
+    CHECK(strcmp(tell(11, "12345 67890 UM* . ."), "0 838102050 ") == 0 && ended_from == 11, "11's UM* is its ROM's: \"%s\"", printed);
+    CHECK(strcmp(tell(12, "100 0 7 U/MOD . ."), "14 2 ") == 0 && ended_from == 12, "12's U/MOD, on its ROM's UM/MOD: \"%s\"", printed);
+    CHECK(strcmp(tell(13, "65536 0 196608 0 Q./ . ."), "0 21845 ") == 0 && ended_from == 13, "13's Q./: \"%s\"", printed);
+
     /* ---- they talk ---- */
     CHECK(strcmp(tell(10, "1 2 + ."), "3 ") == 0 && printed_from == 10, "a line typed at the console is done by Hera");
     for (i = 11; i <= 14; i++) {