Mass, Wendy,  1967-, <br/><br/>
Pi in the sky / 
 Pie in the sky. 
Wendy Mass. 
 - First paperback edition. 
 - 244 pages ;  20 cm. 
<br/><br/> Joss, the seventh son of the Supreme Overlord of the Universe, must team up with a human girl to re-create Earth, when the planet is accidentally erased from existence. 
<br/><br/><label>ISBN: </label>9780316089173 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Earth--Juvenile fiction.<br/>Universe--Juvenile fiction.<br/>Earth (Planet)--Juvenile fiction.