About the book: 2011 / Four guys - Electra, Sheng, Harvey, Mistral - and the engineer Hermes meet again, this time in New York, to find more one top and find out about its purpose. But the servants of the devil Geremit get to him first. Will the friends have enough courage and knowledge to return the top and complete a new task - to unravel the mystery of the Stone Star? The only clue they have is an old photograph of Professor Alfred van der Berger with mysterious numbers written on it.…