Shock Waves — Carolyn Keene

AMERICA'S TOP TEEN DETECTIVES TEAM UP TO DIVE FOR DEADLY TREASURE

Nancy Drew and her boyfriend, Ned, are among the guests invited to plush Padre Island, on the Gulf Coast. Everyone's geared up for spring break, including Frank and Joe Hardy. The brother detectives happen to be staying at the home of wealthy friend Buck Calhoun. While scuba diving, Buck makes a play for Nancy, which Ned intercepts. But the games end when Buck finds a sunken wreck -- and a very dead body.

Meanwhile...

Padre Island's social set is raided by a squad of resort sharks. The sophisticated crime ring has ripped off a fortune in loot. But they've never left a clue -- until they snatch a pair of melted keys belonging to Joe Hardy. The worthless keys have deep personal value for the young sleuth. And he vows to track them down -- no matter what the risk...