| GMD | Text |
| Classification | F OSB |
| Publisher | New York , Scholastic, 1996 |
| Subject | Prehistoric peoples -- Juvenile fiction.Saber-toothed tigers -- Juvenile fiction.Time travel -- Juvenile fiction.Magic -- Juvenile fiction.Brothers and sisters -- Juvenile fiction.Cro-Magnons -- Juvenile fiction.Adventure and advent |
| Topic | Grade 1 Reading (190L-530L) |
| Series | Magic Tree House#7 |
| Description | 67 p. : ill. ; 20 cm. |
| ISBN | 9780590988247 |