 Suspicion falls on the missing Skinner.The "Nautilus" arrives in Venice just as the bombs go off, causing the city to start collapsing in a domino effect.Sawyer uses Nemo's automobile to stop the destruction, while Quatermain confronts the Fantom, who is unmasked as M. Dorian is also revealed to be the traitor, who then murders Nemo's first mate Ishmael and steals the "Nautilus" exploration pod.