Sands, Kevin,

The Blackthorn key / Kevin Sands. - 371 pages ; 20 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.

ISBN: 9781481469302

LCCN: 2014048032

Subjects--Topical Terms:
Apprentices
Pharmacists
Friendship
Secret societies
Supernatural