Dennis, H. L. <br/><br/>
The power of three / 
H. L. Dennis 
 - UK   Hodder  2012 
 - 323 p.  20 cm. 
 - Secret Breakers ; 1 .
<br/><br/><label>ISBN: </label>9780340999615 
<br/><br/><label>Subjects--Topical Terms: </label>--Code and cipher stories
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Mystery. Fantasy.