Osborne, Mary Pope.

Magic Tree House: Dark day in the deep sea / by Mary Pope Osborne ; illustrated by Sal Murdocca. - New York : Scholastic Inc., c2008. - 106 p. : ill. ; 20 cm. - Magic treehouse ; #39 .

When eight-year-old Jack and his seven-year-old sister, Annie, join a group of nineteenth-century explorers aboard the H.M.S. Challenger, they learn about the ocean, solve the mystery of its fabled sea monster, and gain compassion for their fellow creatures.

ISBN: 9780545202145 0545202140 (pbk.)

LCCN: 2007029717

Subjects--Topical Terms:
Oceanography
Compassion
Time travel
Magic
Tree houses
Brothers and sisters

LC Class. No.: PZ7.O81167 / Dar 2008

Dewey Class. No.: [Fic]