After going to London with her father, Irene did not have time to linger to feel the joy of being reunited with her two best friends, Sherlock and Arsene, because shortly after that there was a sesuatt that broke her peace of mind. Orazio Nelson, the head of the servant whom his family loved dearly, suddenly became afraid, after leaving a letter with a short message. Irene yaldn Nelson's departure must have been based on some compelling reason, and she decided to investigate it, with the help of her two comrades. The three im teenagers are then involved in a mysterious crime, which takes place in the Port Docks area, a mysterious puzzle that seems to be closely related to the enchanting indian colony, nun far away.