Victor receives a letter from his father telling him to return home immediately. William, the youngest in the family, has been killed

When Victor arrives at the city gates, they are closed, so he must remain outside the city in Secheron until the gates are reopened at dawn. It is at this time that he realizes that he had been gone six years from home and that two years have passed since the creation of his monster.

While near Secheron, on Mont Blanc, Victor catches a glimpse of the monster between flashes of lightning. Having a nagging feeling that the murder of his little brother could be the handiwork of his monster, Victor questions, "Could he be (I shuddered at the conception) the murderer of my brother?" The monster disappears when he realizes that he has been seen by his creator. Now fully believing that his creation murdered William, Victor knows that he cannot reveal the source of the crime without some serious inquiry about his creation. Thus, Victor is torn between revealing the monster and risking inquisition on his past or letting the criminal justice system free the accused.

Finally at home, Victor engages in a conversation with his family. He learns that Justine is accused with circumstantial evidence. He relays his assertion of Justine's innocence and states that she will be found not guilty. His words reassure Elizabeth in a time of great need.