Bailey goes to the library to look for information on Theodore and Sara. She reads through several books and plans to return. Afterward, she gets lunch and begins to sketch the Dakota from a bench outside. Kenneth finds her there, and she asks if he knows anything about Sara. Bailey tells him about the cottage sketch, and Kenneth says he’ll ask around. They go to his apartment because he wants to buy Bailey’s drawing, and he pays her $100 for it. Bailey goes to the basement, and Renzo helps her open Theodore’s trunk. Inside, they find tubes containing architectural plans, and many dates from the same month Camden was murdered: November 1885. Bailey tips one tube over, and a piece of metal and a small stick fall out. Renzo realizes it is the sheath that fits an old knife recently unearthed in the park across the street. The blade is now at the Met. Bailey realizes the small “stick” is Theodore’s finger bone.

In Minnie’s trunk, Bailey finds a purse containing a note addressed to Christopher from a woman claiming to be his mother, and she says that Theodore Camden is his father.