Christopher Rowe is back and there are more puzzles, riddles, and secrets to uncover in this follow-up to the Indie Next pick The Blackthorn Key, which was called a "spectacular debut" by Kirkus Reviews in a starred review.

The Black Death has returned to London, spreading disease and fear through town. A mysterious prophet predicts the city's ultimate doom--until an unknown apothecary arrives with a cure that actually works. Christopher's Blackthorn shop is chosen to prepare the remedy. But when an assassin threatens the apothecary's life, Christopher and his faithful...