diff --git a/src/Dodge/Inventory/FindRoot.hs b/src/Dodge/Inventory/FindRoot.hs
new file mode 100644
index 000000000..517261698
--- /dev/null
+++ b/src/Dodge/Inventory/FindRoot.hs
@@ -0,0 +1,17 @@
+module Dodge.Inventory.FindRoot where
+
+import Dodge.Item.Grammar
+import Dodge.Data.Creature
+import Data.Maybe
+import Control.Lens
+
+getRootItemID :: Int -> Creature -> Int
+getRootItemID i cr = fromMaybe i $ do
+    let adj = invAdj (_crInv cr)
+    adj ^? ix i . _1 . _Just . _1
+
+updateRootItemID :: Creature -> Creature
+updateRootItemID cr = fromMaybe cr $ do
+    i <- cr ^? crManipulation . manObject . inInventory . imSelectedItem
+    return $ cr & crManipulation . manObject . inInventory . imRootItem .~
+        getRootItemID i cr