Osborne, Mary Pope
Dark Day in the Deep Sea: Magic Tree House #39. - New York, NY : Random House/ A Stepping Stone Book, 2008. - Magic Tree House .
When eight year old Jack and his seven year old sister, Annie, join a group of nineteenth century explorers aboard the HMS Challenger, they learn about the ocean, solve the mystery of it's fabled sea monster, and gain compassion for their fellow creatures.
9780375837326
Dark Day in the Deep Sea: Magic Tree House #39. - New York, NY : Random House/ A Stepping Stone Book, 2008. - Magic Tree House .
When eight year old Jack and his seven year old sister, Annie, join a group of nineteenth century explorers aboard the HMS Challenger, they learn about the ocean, solve the mystery of it's fabled sea monster, and gain compassion for their fellow creatures.
9780375837326