Sands, Kevin, <br/><br/>
The blackthorn key / 
Kevin Sands. 
 - This Aladdin paperback edition May 2016 
 - New York :    Aladdin,  2015 
 - 371 pages ;  20 cm  
<br/><br/> 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. 
<br/><br/><label>ISBN: </label>9781481446518 (hardcover) 9781481446525 
<br/><br/><label>LCCN: </label>2014048032 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Apprentices--Fiction.<br/>Supernatural--Fiction.<br/>Pharmacists--Fiction.<br/>Friendship--Fiction.<br/>Secret societies--Fiction.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>London--History--17th century--Fiction.<br/>Great Britain--History--Charles II, 1660-1685--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.1.S26  / Bl 2015 
<br/><br/><label>Dewey Class. No.: </label>[Fic]