Osborne, Mary Pope. <br/><br/>
Viking ships at sunrise /  [book] 

 - New York :  Random House,  c1998. 
 - 71 p. :  ill. ;  20 cm. 
 - Magic tree house ;  #15 .
 - Osborne, Mary Pope.  Magic tree house series  ;  15 ;  15. .
<br/><br/> "A Stepping Stone book." 
<br/><br/> Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders. 
<br/><br/><label>ISBN: </label>0679890610 (pbk.) 0679990615 (lib. bdg.) 
<br/><br/><label>LCCN: </label>98023602  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vikings<br/>Monasteries<br/>Time travel<br/>Magic<br/>Tree houses
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Ireland--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.O81167  / Vh 1998 
<br/><br/><label>Dewey Class. No.: </label>[Fic]