diff --git a/scenes/node_3d.tscn b/scenes/node_3d.tscn
index 3c113ce..d4874c0 100644
--- a/scenes/node_3d.tscn
+++ b/scenes/node_3d.tscn
@@ -52,7 +52,6 @@ transform = Transform3D(1, 0, 0, 0, 0.707107, 0.707107, 0, -0.707107, 0.707107,
 
 [node name="Door" type="Node3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -10, 1, 0)
-visible = false
 script = ExtResource("3_imxmk")
 locked = true
 requires_key = true
@@ -78,7 +77,6 @@ outline_size = 32
 
 [node name="DoorKey" type="Node3D" parent="."]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, -5)
-visible = false
 script = ExtResource("6_qe67v")
 resource = ExtResource("4_3rynd")
 
diff --git a/src/inventory.ts b/src/inventory.ts
index ff7fe52..704aa71 100644
--- a/src/inventory.ts
+++ b/src/inventory.ts
@@ -2,6 +2,7 @@ import { clampi, Node, StringName } from 'godot'
 import ItemData from './item'
 import { GArrayEnumerator } from './collection/enumerable'
 import { Enumerable } from '../addons/enumerable-ts/src/index'
+import { find_in_descendents } from './node'
 
 class ItemInstance {
   readonly resource: ItemData
@@ -48,9 +49,7 @@ export default class Inventory extends Node {
       return Inventory.cache.get(root)
     }
 
-    const child_enumerator: GArrayEnumerator<Node> = new GArrayEnumerator(root.get_children())
-    const children = Enumerable.from(child_enumerator)
-    const inventory = children.find(child => child instanceof Inventory) as Inventory
+    const inventory = find_in_descendents(root, n => n instanceof Inventory) as Inventory
 
     if (inventory != null) {
       Inventory.cache.set(root, inventory)