At the age of 12, Stefano followed the captain's father for the first time. He walked around the deck excitedly, walked to the stern, stopped and stared curiously at something two or three hundred meters away from the ship. That thing chased the wake, and from time to time it appeared out of the sea, always following.Father walked out of the cockpit and asked Stefano: "Why are you standing there?"Stefano pointed at that thing. Father looked at the coda with his telescope, and suddenly shouted whitely, "God, how could this be!"