The Danger is the third book in Gordon's Dive Trilogy from Scholastic. It continues the story of the four teens who have discovered the sunken remains of a Spanish treasure galleon, sunk in the Caribbean. Unfortunately, their superiors from the Poseidon Oceanographic Institute are trying to hide the existence of the ship, in order to take all the treasure for themselves.
One man who has tried to help the teens track down the ship has already lost his life, and the crooks from the Institute are getting closer all the time. It is a race to find someone willing to help them, before the treasure is lost, and a dangerous race, at that.
The final book in the series is as exciting as you might expect, following in the steps of the previous trilogies, and Gordon has provided another fine adventure.