Nancy Drew and her boyfriend, Ned, are among the guests invited to flourish 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 game begins when Buck finds a sunken wreck, and a dead body. Meanwhile, Padre Island's social set is raided buy a squad of resort sharks. The sophisticated crime group 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 worth keys have deep personal value for the youth sleuth.
And, he vows to track them down no matter what the risk...in Shock Waves. This novel has twists and turns like a switch-back road that keeps one guessing.