After leaving Lockwood & Co. at the end of The Hollow Boy, Lucy is a freelance
operative, hiring herself out to agencies that value her ever-improving skills.
One day she is pleasantly surprised by a visit from Lockwood, who tells her he
needs a good Listener for a tough assignment. Penelope Fittes, the leader of the
giant Fittes Agency wants them--and only them--to locate and remove the Source
for the legendary Brixton Cannibal. They succeed in their very dangerous task,
but tensions remain high between Lucy and the other agents. Even the skull in
the jar talks to her like a jilted lover. What will it