Sculpted by: Israel Skelton
Release: 2012
Edition: Limited
Used material(s): Cast in bright nickel-plated pewter with white enamel
One of: 1000

Signed: First 400 Gabriel Rodriguez & Israel Skelton

First appearance: Keys to the Kingdom #4
Use the Angel wings
The Angel wings

More information:
(possible spoilers)

The Angel Key was used by the Locke children to escape the clockwork owls. It was also used by Rendell Locke and his group of friends.

The Angel key consists of a harness with a large pair of white wings, with the key fitting into the back. Wearing the wings allows the user to fly and carry a considerable amount of weight.

Guide to the known keys entry (translated):
“Oh my God. Oh my God! At dawn I was outside looking for little Joe. There was a storm and it was pouring rain. Everything seemed sick and unreal to me – like in a nightmare. I ran and ran, totally desperate, and I didn’t give a fuck what he was telling Jean about me. If he was dead I wanted to die as well. And then I saw something unbelievable – something that could not actually be in existence, and my knees went soft from surprise and wonderment. I saw Jean fly upwards through the rain, her brother’s shattered body in her arms. She carried the harness with her wings, and in the back was the key. I swear she was flying! And she looked as beautiful as a mourning dove.”

Source: Locke & Key Wikia