Nielsen, Jennifer A. <br/><br/>
Behind Enemy Lines - Book 6. 

 - New York, NY :  Scholastic,  2013. 
 - 186 
 - Infinity Ring .
<br/><br/> World War II is raging across Europe, and the Axis and Allied powers are in a stalemate.  Dak, Sera, and Riq can tip the scales in the Allies' favor...if they can pull off the most daring spy mission of all time.  But even if they succeed, are the playing into the SQ's hands? 
<br/><br/>
<br/><br/><label>ISBN: </label>9780545484626