The Blackthorn key /
Kevin Sands.
- First Aladdin hardcover edition.
- New York : Aladdin , c2015.
- 371 pages ; 22 cm.
In 1665 London, fourteen-year-old Christopher Rowe, apprentice to an apothecary, and his best friend, Tom, try to uncover the truth behind a mysterious cult, following a trail of puzzles, codes, pranks, and danger toward an unearthly secret with the power to tear the world apart.