→13.08 The Scorpion and the Frog
===[[13.08 The Scorpion and the Frog]]===
Sam arrives at [[Luther Shrike]]'s mansion under the guise of a seller who wants to offer him a knife that can kill demons. He presents Ruby's Knife to Shrike in a wooden box and claims that it is one-of-a-kind. Luther, seeing Sam's deceit, believes that he's a demon and attacks him with the knife. During the struggle, Sam stabs Luther, but the knife is ineffective as Shrike cannot die while he remains on the property. He knocks Sam out with a fossilized tooth
of a Gorgon and takes the knife with him to go protect the safe. Upon arrival, Shrike uses the blade to kill the demon [[Grab]] before entering the room. He goes to attack Dean, but Sam distracts him and Dean punches Luther and retrieves the knife.