| GMD | Text |
| Classification | 813.6 OSB |
| Publisher | New York, Random House, c1997 |
| Subject | Marine animals -- Juvenile fiction.Submarines (Ships) -- Juvenile fiction.Time travel -- Juvenile fiction.Magic -- Juvenile fiction.Tree houses -- Juvenile fiction.Adventure and adventurers -- Juvenile fiction. |
| Topic | Grade 1 Reading (190L-530L)Grade 2-3 Reading (420L-820L) |
| Series | Magic Tree House#9 |
| Description | 67 p. : ill. ; 20 cm. |
| ISBN | 9780679883388 |
| Additional ISBN | 9780590706353 |