The cycle about Percy Jackson brought its author worldwide fame. Today, films are being made based on the works of Rick Riordan, and the total sales of his books have exceeded 100 million copies.The hour of fulfillment of the prophecy is coming! Percy Jackson will be sixteen in five days. And the young man has to make a choice: he is destined to save Olympus... or destroy it. And it is also likely that Percy himself is waiting for death. And this is not surprising. Typhon, a terrifying and powerful giant, has escaped from captivity and is moving towards New York. The gods don't seem to be able to stop him. Having gathered a huge army, Kronos has already begun to implement his deadly plan… The lord of the Titans even has a spy in Camp Half-blood! The fate of the gods and the fate of humanity will be decided in five days. And it must be solved by Percy Jackson!This is the fifth book of the cycle.