The Kenku

A thief in the city of Lüsterbourg. The boys believe they are in possession of the first black dagger and is responsible for the theft of Monserat's greatest painting, as well as the murder of Tumnus Birch.

Wears an invisibility cloak made of dark black feathers.

Also suspected of stealing the Gumball Machine of Ultimate Death, the Carved Dragon's Egg, and the Eleven-Jeweled Toilet.