Pilkey, Dav,  1966- <br/><br/>
Captain Underpants and the terrifying return of Tippy Tinkletrousers :  the ninth epic novel / 
by Dav Pilkey. 
 - New York :  Scholastic,  c2012. 
 - 290 p. :  ill. ;  22 cm. 
<br/><br/> Having changed the course of human history after unwittingly wondering what could be worse than going to prison, George and Harold are catapulted through time back to their kindergarten days, where they are subjected to a sixth-grade bully and a clueless school principal. 
<br/><br/><label>ISBN: </label>9780545175340 :  $9.99 0545175348 :  $9.99 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time travel--Fiction.<br/>School superintendents and principals--Fiction.<br/>Superheroes--Fiction.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>School stories.<br/>Humorous fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.P63123  / Cav 2012 
<br/><br/><label>Dewey Class. No.: </label>[Fic]