He would start off by asking her a question she doesn't know the answer to. "I'm actually not sure," Sam says. "It's a pocket universe. It's some kind of temporal and spatial anomaly that pulls people from different places and times and other than that, we don't know a lot about it."

Her apartment is kind of a mess, with William's and Janet's toys everywhere and some dirty dishes in the sink, but she ignores the mess for the moment to peer in some boxes where she had carefully packed away Jack's things. She couldn't bear to get rid of them, but it was too painful to leave them out, so boxing them up was a compromise with herself. "Bathroom's down the hall," she says, passing him a small pile of meticulously folded clothes but no shoes because she doesn't remember where they are. "There's a lot to explain and I don't think you want to sit through it cold and wet."