Later, Watson practices single-stick and complains. It looks like fun to whack people over the head. Gregson calls in with the news Lydon's been arrested for shooting Crabtree. And he'll only talk to Sherlock Holmes!

At the scene, Lydon says he can't remember what happened. But the nurse saw everything. Then Lydon's sons bust in and shout things, but they're not allowed far enough into the scene to make sense. When Holmes is alone with him, Lydon says he's having a hard time holding on to what's real. He doesn't know where he got his conviction that someone caused his dementia. "Help me!" he begs. Holmes glances at the Bee Hexagon. He goes downstairs and tells Watson they're taking the case. Off to the genetics lab! After taking the bee home!

The genetics lab ("Watt-Helix") has a lobby that looks like a living room, but with a sleek steel spiral staircase. And there's a very expensive portrait of the owner on the wall. Holmes and Watson are met by Raf Keating (the president) and Natasha Kademan (a geneticist). Holmes recognizes her for writing a neat article about criminal genes. Keating is surprised that Lydon thinks he was given CAA. Holmes asks if it's possible and Kademan admits that it might be possible. She says that there are "maybe seven people out there" capable of it. Holmes asks for their names and addresses.

Watson finds a note on her bedroom door. She comes down to hear Holmes speaking, I think, Dutch. He taped his dry cleaning receipt to her door because he has decided that she should be in charge of dry cleaning while he keeps the refrigerator clean. He was talking to someone in Norway, but I guess it could have been Dutch. No one ever said that people in Norway can only speak Norwegian. He was speaking to a Dr. Ingvald Moller (I bet there should be a slash through that O, but we see his name spelled out without it), who has a publicly funded lab, but he recently put a down payment on an expensive house. And it was cosigned by Carter Lydon. Perhaps Carter Lydon paid him off to find a way to poison his father! They could talk to Carter about this, but Holmes prefers to talk to scientists rather than businessmen. Plus, fjords and Scandinavian women. So they're going to Norway! Except they're not, really, and no further mention will be made of their plan to fly to Norway.