Grave stones are not lootable and give 10 gold. No idea what gold even does. I mean, why _are_ there traders in a dungeon?

assets/items.json

@@ -68,5 +68,19 @@
       {"_type": "Curative", "hp": 200},
       {"_type": "Sprite", "name": "healing_potion_small"}
     ]
+  },
+  "GRAVE_STONE": {
+    "id": "GRAVE_STONE",
+    "name": "Grave Stone",
+    "description": "Something died here. Was this your doing?",
+    "inventory_count": 1,
+    "components": [
+      {"_type": "Tile", "display": "\u21ef",
+        "foreground": [32, 123, 164],
+        "background": [24, 205, 189]
+      },
+      {"_type": "Loot", "amount": 10},
+      {"_type": "Sprite", "name": "grave_stone"}
+    ]
   }
 }