[Scrungo]

You move over to your desk and grope under it; you find a key! Well, you don't find it per se, you put it there at an earlier date and are now retrieving it. You hunk that bad boy into your inventory.
I wonder where you could use this?

[67Phlox]

Barry: Maybe check the wardrobe for more stuff?

[a ghost!]

equip the key and use it on the wardrobe.