| GMD | Text |
| Classification | 813.6 OSB |
| Publisher | New York, Random House, c2004 |
| Subject | Tree houses -- Fiction.Brothers and sisters -- Fiction.Magic -- Fiction.Time travel -- Fiction.Time travel -- Juvenile fiction.Tree houses -- Juvenile fiction.Magic -- Juvenile fiction.Brothers and sisters -- Juvenile fiction.Adventure and adventurers -- Juvenile fiction.Wizards -- Juvenile fiction.Selkies -- Fiction.Swords -- Fiction. |
| Topic | Grade 1 Reading (190L-530L)Grade 2-3 Reading (420L-820L) |
| Series | Magic Tree House#31 |
| Description | 111 p. : ill. ; 20 cm. |
| ISBN | 9780375864919 |
| Additional ISBN | 9780545382663 |
| Suitable | From 6 To 9 |