About the book: 1979 / Hector Sebastian warns the faint of heart Does it happen that your soul sinks into your heels? If you are scared by giant waves, menacing sharks, landslides and creepy ghosts rising from the ocean depths, then this book is not for you. If you don't like an exciting adventure, I advise you to find a more boring story. But if your heart skips a beat in anticipation of danger, the latest case of my friends - the Three Investigators - will really tickle your nerves. Never before have three guys found themselves in such a mysterious story. The detectives had to mobilize all their talents. Jupiter Jones, the fat-cheeked leader of this trio, passes a real test of intelligence and solves a mystery that will help solve the rest. Fearlessness leads tall, strong and agile Pete Crenshaw into the jungle of mortal danger. And finally, the thoughtful and meticulous Bob Andrews. His ingenuity saves the day when it seems that all is lost. From the moment Bob Andrews' dad takes the boys to Santa Barbara, to an oil platform in the ocean, they are caught in a whirlwind of unusual and mysterious incidents! Well, daredevils, join Jupe, Pete and Bob in pursuit of a mystery that they will eventually unravel - the mystery of Shark Reef! Hector Sebastian