Pilkey, Dav,  1966- <br/><br/>
Captain Underpants and the preposterous plight of the purple potty people :  the eighth epic novel / 
by Dav Pilkey. 
 - 172 pages :  color illustrations ;  20 cm. 
 - Captain Underpants ;  bk. 8 .
<br/><br/> School Library Journal, December 2006.  Horn Book, April 2007. 
<br/><br/> Crackers and Sulu, the Bionic Hamster, finds themselves in a backwards universe where George and Harold's own evil twins rule the school with the help of the wicked Captain Blunderpants. 
<br/><br/> 4.7  3-6  760L  Lexile 
<br/><br/><label>ISBN: </label>9780439376143 0439376149 0329487302 9780329487300 1415689555 9781415689554 9781338271515 9781338864380 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Captain Underpants (Fictitious character)--Fiction.<br/>School principals--Fiction.<br/>Schools--Fiction.<br/>Heroes--Fiction.<br/>Humorous stories.<br/>Captain Underpants (Fictional character)--Fiction.<br/>School superintendents and principals--Fiction.<br/>School stories.<br/>Heroes and heroines--Fiction.<br/>Humorous fiction.<br/>School stories.<br/>School principals--Fiction.<br/>Heroes--Fiction.<br/>Humorous stories.
<br/><br/><label>Dewey Class. No.: </label>F PIL