- Detective William Murdoch: When you broke down the door, this is how you found Mr. Grimesby?
- Stanley Paulk: Face down in his own filth! Fitting I'd say!
- Detective William Murdoch: Why would a man who's clearly right-handed write with his left hand?
- Inspector Thomas Brackenreid: Because he's mad as a box of frogs!
- Arthur Conan Doyle: [Referring to Mycroft, the ventriloquist's dummy] Will someone please put a termite up that puppet's applecart?
- Detective William Murdoch: George, how are things with the puppet?
- Constable George Crabtree: It stares at me, sir, like it knows what I'm thinking. And it's always grinning this grin...
- Detective William Murdoch: Basswood and wires, Constable.