Sculpted by: Jamie Macfarlane and Israel Skelton
Release: 2013
Edition: Limited
Used material(s): Cast in Roman gold-plated pewter
One of: 1000
Signed: No
First appearance: Keys to the Kingdom #3
Use: Controls squirrels
Door: (?)
More information:
(possible spoilers)
The Undertree Key was used against the Locke children during February.
Seems to allows the user to control squirrels.
Source: Locke & Key Wikia
