Osborne, Mary Pope.
Viking ships at sunrise / by Mary Pope Osborne; illustrated by Sal Murdocca. - New York, NY : Random House, 1998. - p. cm. - Magic tree house; #15 .
Summary: 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.
0-679-99061-5
Vikings--Fiction
Ireland--Fiction
Time travel--Fiction
Viking ships at sunrise / by Mary Pope Osborne; illustrated by Sal Murdocca. - New York, NY : Random House, 1998. - p. cm. - Magic tree house; #15 .
Summary: 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.
0-679-99061-5
Vikings--Fiction
Ireland--Fiction
Time travel--Fiction