An encounter in 1935 and the search for a missing notebook

In their quest to find a missing notebook, the narrator and Byron find themselves in 1935. They enter a library filled with floor-to-ceiling bookshelves and encounter an eleven-year-old girl named Mary. Despite their attempts to explain their peaceful intentions, Mary becomes agitated and wields a pair of scissors. In the shadows, the narrator spots the notebook they are searching for on a desk. They decide to distract Mary and retrieve the notebook. As they leave, they find themselves disoriented and end up in the original Marston House cellar where the bodies were discovered in 2016. They eventually make it back to the present, with the narrator left with a scar from being stabbed in the past. The episode ends with the discovery of Robert Blake's notebook, bringing their journey to a close.