Osborne, Mary Pope. <br/><br/>
Night of the Ninjas / 
by Mary Pope Osborne; illustrated by Sal Murdocca. 
 - New York, NY :  Random House,  1995. 
 - p.  cm. 
 - Magic tree house; #5 .
<br/><br/> Summary: Their magic tree house takes Jack and Annie back to feudal Japan where the siblings learn about the ways of the Ninja. 
<br/><br/><label>ISBN: </label>0-679-96371-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ninja--Fiction<br/>Time travel--Fiction<br/>Japan--Fiction