Osborne, Mary Pope. <br/><br/>
Horse heroes :  Fact tracker / 
Mary Pope Osborne. Natalie Pope Boyce. 
 - New York:  Scholastic,  2013. 
 - 125 p.  ill.  19 cm. 
 - Magic tree house. .
<br/><br/> " A nonfiction companion to magic tree house #49". [from cover page]. 
<br/><br/><label>ISBN: </label>9780545606332 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Horses.