Douglas Preston <br/><br/>
Riptide 

 -  Grand Central Publishing 
 - 496 pages 
<br/><br/> For generations, treasure hunters have searched for the key to the Water Pit, the labyrinth of shafts and tunnels that honeycombs Ragged Island. But the Pit is reluctant to give up its treasure, and many will die before its secret is revealed. 
<br/><br/><label>ISBN: </label>9780446607179 
<br/><br/><label>Standard No.: </label>41576664 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery<br/>Historical Fiction
<br/><br/><label>LC Class. No.: </label>PS3566.R3982 
<br/><br/><label>Dewey Class. No.: </label>813.54