| 作者 (Author) | Osborne, Mary Pope |
| Summary: When eight-year-old Jack and his 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. Book #39 | |
| 等级 (MML) | MM Level-3.4 |
| 年级 (IL) | Lower Grades (LG K-3) |
| 字数 (Words) | 11676 |
| 类型 (Fiction) | Fiction |
| 系列 (Series) | Magic Tree House; Magic Tree House: Merlin Missions; Stepping Stone; |
| Topic: Recommended Reading-Reading Rockets; Science-Oceanography; Science Fiction-Time Travel; | |
