Under the Sign of Capricorn

Corto Maltese meets a drunk named Jeremiah Steiner. Steiner accompanies Corto to Corto's boat, where Steiner falls asleep. At Madame Java's, Corto is introduced to Tristan Bantam, who asks him for help looking for the legendary Mu, following in his father's footsteps. As they're talking an attacker tries to kill Tristan. Corto manages to foil the attack and finds an address on the attacker's body. He discovers that Tristan's guardian, the lawyer Milner, is behind the attack. Corto, Tristan, and Professor Steiner decide to look for Tristan's sister.