Mary Pope Osborne

Dark Day in the Deep Sea
Mary Pope Osborne · 2009
Where to buy
Amazon’s price changes daily, so the most accurate place to see it is there, at the moment you buy.
View on AmazonAbout the book
Jack and Annie continue their quest for the secrets of happiness--secrets they need if they're going to save Merlin. But when the magic tree house leads them to a tiny deserted island in the middle of the ocean, they're not sure who needs help more--Merlin or themselves! The brother and sister team are soon rescued by a ship of explorers and scientists. But the crew isn't looking for the secrets of happiness. The crew is looking for . . . a sea monster!From the Hardcover edition.
Book details
- Year
- 2009
- Language
- English
- Series
- Magic treehouse series -- #39
- Publisher
- Scholastic
- Editions
- 18
- Pages
- 106
- ISBN
- 9780545202145
Data source: Wikidata
More by Mary Pope Osborne
Mary Pope Osborne

Camp Time in California
Mary Pope Osborne · 2022
Mary Pope Osborne

Magic tree house survival guide
Mary Pope Osborne · 2021
Mary Pope Osborne

Summer of the sea serpent
Mary Pope Osborne · 2020
Mary Pope Osborne

Christmas in Camelot
Mary Pope Osborne · 2019
Mary Pope Osborne

Hurricane heroes in Texas
Mary Pope Osborne · 2018
Mary Pope Osborne

Wild West
Mary Pope Osborne · 2018
Mary Pope Osborne

Texas
Mary Pope Osborne · 2018
Mary Pope Osborne

A Big Day for Baseball (Magic Tree House (R))
Mary Pope Osborne · 2017
Mary Pope Osborne

Magic tree house Merlin missions collection
Mary Pope Osborne · 2017
Mary Pope Osborne

Sharks and other predators
Mary Pope Osborne · 2015