Colfer, Eoin <br/><br/>
The reluctant assassin 

 - New York :   Hyperion,   c2013 
 - 341 p.  
 - W.A.R.P. ;  bk.1 .
<br/><br/> In Victorian London, Albert Garrick, an assassin-for-hire, and his reluctant young apprentice, Riley, are transported via wormhole to modern London, where Riley teams up with a young FBI agent to stop Garrick from returning to his own time and using his newly acquired scientific knowledge and power to change the world forever 
<br/><br/><label>ISBN: </label>9780141341767 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time travel--Juvenile literature<br/>Assassins--Juvenile fiction<br/>Science fiction
<br/><br/><label>Subjects--Geographic Terms: </label><br/>London (England)--History--19th century<br/>Great Britain--History--Victoria, 1837-1901