Tropic Of Fear is the 14th book in the Nancy Drew and Hardy Boys SuperMystery'88 series. It was first published in November 1992 by Archway Paperbacks (an imprint of Simon & Schuster), and is a spin-off of the Nancy Drew Files and The Hardy Boys Casefiles, respectfully.
Back cover summary: 
"America's Top Teen Detectives Team Up When Trouble Erupts In A Pacific Paradise
"Soon after checking into Honolulu's Grand Hawaiian Hotel, NANCY DREW and her friends find their vacation on shaky ground. Powerful forces of greed and corruption have put the posh hotel at the eye of a gathering storm, and millions, perhaps billions, of dollars are at stake. The undercurrent of mystery and menace bursts to the surface when Nancy finds a man lying a step away from her rental jeep---with a bullet in his back.
"The surfs up at Waikiki, and FRANK and JOE HARDY are riding the waves. They're working undercover, trying to infiltrate an elusive gang of thieves. The investigation leads the boys straight into the Grand Hawaiian Hotel! Finding a connection between their case and Nancy's suddenly takes on a life-and-death urgency when the teens find themselves trapped on a volcano, about to be swallowed by the flow of devouring molten lava...in TROPIC OF FEAR."
Businesses and organizations
- Grand Hawaiian Hotel
- This is one of the few Nancy Drew and Hardy Boys SuperMystery 88 books to open with the Hardy Boys.
- A Nancy Drew And Hardy Boys Super-Mystery: Tropic of Fear