"Frank and Joe are off to the Florida Keys to work alongside Lookout Shark Lab's Dr. E. Ella Edwards, one of the world's foremost marine biologists. On their first evening, Dr. Edwards paddleboards out to check on a lemon shark nursery. But after a sudden squall rolls in, she doesn't return, and the next day her board washes up with a shark bite taken out of it. The Hardys volunteer to help the search and rescue efforts as panic sparks a rift in Lookout...

"Jasmine Lopez and her brother, Arjun, love exploring the coral reefs around Fiji, where their marine biologist parents are stationed. Jasmine, already a certified scuba diver, dreams of following in her parents' footsteps and wants to help Arjun do the same. Unfortunately her younger brother is sure he already knows everything. That attitude gets them into danger when Arjun drifts too far from the group during a dive--and straight into a reef shark"--Title...

Arm of the starfish: A marine biology student reporting to his summer job on an island off Portugal finds himself at the center of a power struggle between his boss and another group of Americans. Dragons in the waters: A thirteen-year-old boy's trip to Venezuela with his cousin culminates in murder and the discovery of an unexpected bond with an Indian tribe, dating from the days of Sim©đn Bol©Ưvar. House like a lotus: While working at a conference...