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Plastic Key
Plastic Key
Description A toy-like key. Seems it might just fall apart.
Usage Unlocking Mary's house (Sketchbook)

The Plastic Key is a key in the game Ib. It is a yellow, crayon-drawn key used inside the Sketchbook to open the door to Mary's house. To find it, Ib and Garry must solve the Switch Puzzle, pressing the eight switches in the right order so that the key will appear in the center of the room. The key can open the door with the heart symbol in the northern quadrant of the Sketchbook, leading into Mary's house where the Toy Box sits.


  • The Plastic Key is yellow, which is Mary's signature color, and it opens the door to her house.