At the first stop, Dr. Hartz's patient, covered in bandages from top to toe and on a stretcher, is brought aboard. Madame Kummer, dressed exactly like Miss Froy, appears in her place, but Iris and Gilbert continue searching. They are attacked by a knife-wielding magician, Signor Doppo, who was in Iris's compartment. They suspect that Dr. Hartz's patient has been replaced by Miss Froy. Dr. Hartz tells his fellow conspirator, a British woman dressed as a nun, to drug Iris and Gilbert. Then, convinced they will soon be asleep, Hartz admits to them that he is involved in the conspiracy. The false nun does not follow Hartz's instructions out of loyalty to her fellow countrymen; Gilbert and Iris escape, free Miss Froy and replace her with Madame Kummer.