At the hospital, Clémentine is operated on by Dr. Delatrousse. The doctor tells Alex that she may never walk again. Alex looks for a way to tell Clémentine, but it's the head supervisor, Miss Chevrotine, who tells her, roughly. At night, Héméra takes Clémentine above the city. Illico fails to obtain Mollache's confession, but Mollache declares himself to be the "king of saboteurs" in front of Ginette, who passes the message to Illico and Little Boy. The duo fills the rocket with gunpowder. The next day, Illico pretends to be police and causes Mollache to panic. The saboteur rushes into his rocket, but the gunpowder explodes and he loses control of his rocket. Delatrousse announces that he has developed a new operating technique that could allow Clémentine to walk again. Malmoth tricks Delatrousse by calling the hospital to say his wife is ill. The stranger who telephoned the professor then went to the hospital and introduced himself as Dr. Billot, replacing the late Dr. Delatrousse.