Ogden, Charles <br/><br/>
Hot air / 
Charles Ogden ; illustrated by Rick Riordan. 
 - New York :  Aladdin Paperbacks,  c2008. 
 - 176 p. : ill. ; 20 cm. 
 - Edgar & Ellen ; bk. 1 .
<br/><br/><label>ISBN: </label>9781416954651