Andrew's final days in the attic

Andrew's final days in the attic become visible only when Nina Winchester encounters Millie Calloway beside his body. The span is marked by a crucial uncertainty: Millie estimates that he had been there for five or six days, but cannot say how long he had been dead. Nina turns that uncertainty into a decision to protect Millie and face the police herself.

Duration and Discovery

When Nina finds Millie, Millie is holding pepper spray and keeping it trained on her. Asked how long Andrew has been there, Millie answers that it may have been five days, or six, and that she has lost count. Nina then asks specifically how long he has been dead, distinguishing the time his body has been present from the unknown moment of death. The exchange gives the interval its only measure, but not a precise chronology.

Nina's Decision

Nina tells Millie that she was not there and offers to say that she had been home all week and had given Millie the week off. She frames the lie as Millie's chance to leave, while Nina believes her own history of mental-health hospitalization means she could be sent back to a psychiatric hospital if events turn against her. Her choice shifts the immediate risk away from Millie and onto herself.

The End of the Interval

Nina urges Millie to get out before she changes her mind. Millie leaves the room, goes down the stairs, and exits through the front door; Nina is left alone in the house with Andrew's body. She then picks up her phone and calls the police. The week-long span therefore ends not with a settled account of Andrew's death, but with Millie's departure, Nina's decision to remain, and the beginning of an official response.