The black circle / 
Patrick Carman. 
 - New York :  Scholastic,  2009. 
 - 168 pages:  19 cm 
 - 39 clues, bk. 5. .
<br/><br/> Lex: 700 
<br/><br/> INCOMING! Amy and Dan have been found UNHARMED! But perhaps not for long - the ruthless Irina Spasky is right on their tail. And WHAT are those crazy kids doing poking their noses into Lucian secrets?!? Are they TRYING to get themselves killed? The 39 Clues Book 5 takes Dan and Amy on their most dangerous quest yet. 
<br/><br/><br/>in English 
<br/><br/><label>ISBN: </label>9780545060455 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adventure stories<br/>Children's stories
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Russia (Federation)--Juvenile fiction.
<br/><br/><label>LC Class. No.: </label>813.6 C21b c2009