Approaching through the preserve behind the property, Olivia reaches Vincent Taylor’s childhood house and waits for a neighbor to go inside before attempting entry. She bypasses the back door by loosening an old window lock, as Vincent once described doing, and slips into the dark, disused kitchen and central hallway.

Moving room to room, Olivia notes the house’s stagnant air and preserved fixtures, imagining the family’s final morning and the killer’s movements. She stands where Danny’s body was found in the hallway, reconsidering her earlier assumptions in light of Vincent’s recent stories, and contemplates whether Danny might have fled rather than tried to help Poppy.

Olivia inspects the parents’ room and the former boys’ room, reflecting on Vincent having to sleep beside Danny’s untouched bed for years after the murders. She then enters Poppy’s room, recalling Vincent’s night terror about a hidden knife and decides to examine the windowsills.

After forcing open a sticky sash, Olivia discovers a concealed, removable sill compartment. Reaching into the insulation void, she feels a serrated edge but retrieves not a weapon, but a rusted four-inch “Pro Roe 1973” button. She concludes Poppy likely hid it to avoid their mother’s disapproval and keeps the button as a personal artifact.

Surveying the room with memories from old photos, Olivia imagines Poppy’s sanctuary as it once was. She checks the closet, crawls inside, and from that vantage notices writing on a hidden interior wall surface that is not visible from outside the closet.

Olivia reads a threatening message scratched in faded marker, in what she recognizes as Vincent’s distinctive handwriting: “Someday soon, you’ll be dead.” The discovery reframes the house search from a nostalgic reconstruction into a disturbing revelation implicating Vincent’s hostility toward Poppy shortly before her death.