Title: Dark Day in the Deep Sea
Description: 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.
Subjects: Oceanography, Brothers and sisters, Compassion in fiction, Compassion, Historical Fiction, Tree houses, Magic in fiction, Fiction, Brothers and sisters in fiction, Time travel in fiction, Oceanography in fiction, Magic, Tree houses in fiction, Challenger (Ship : 1872-1876), Juvenile Fiction, Time travel, Action & Adventure, Marine Life, Ships, Reader, Animals, Chapter Books, Children's fiction, Oceanography, fiction, Time travel, fiction, Magic, fiction, Tree houses, fiction, Brothers and sisters, fiction, New York Times bestseller, nyt:series_books=2007-03-10, Siblings, fiction, Ships, fiction, Kinderbuch ab 8 Jahren, Mädchen, Junge, Schwester, Bruder, Geschwister, Baumhaus, versteckt, verborgen, Zeitreise, Abenteuer, 19. Jahrhundert, Forschungsschiff, Meer, Ozean, Tiefsee, Wissenschaftler, Forschung, erforschen, unbekannte Lebewesen, Sturm, Ungeheuer, Angriff
Places: Tiefsee
Time periods: 19. Jahrhundert