Sculpted by: Arlen Pelletier
Release: 2019
Edition: Legacy
Used material(s): Cast in bright chrome-plated white metal
One of: Unlimited
Signed: No
Reissued in Ghost Door box since 2020
First appearance: Keys to the Kingdom #3
Use: Reveal hidden things
Door: Harlequin Wardrobe
More information:
(possible spoilers)
The Harlequin Key is discovered by Bode in a hollow book titled “Keys to the Kingdom”, along with The Hercules Key and the Angel Key. Unlocks a door with a harlequin on the front.
Unlocks the Harlequin Wardrobe, revealing hidden things not seen when unlocked with an ordinary key.
Source: Locke & Key Wikia