Is this a dagger I see before me? Yep. And I gotta recap that shit. Clark is up in the loft, and the camera shows Papa Luthor in the background, eyeing Clark as he comes up the stairs. Papa Luthor tells Clark that in some cultures, when a father presents a knife to a son it represents a rite of passage. A passage into an adulthood full of stabbing small animals. Clark asks how Papa Luthor knew that the knife was from Jarnelle. Papa says that the glyphs on the blade look Kryptonian. Clark thinks a "glyph" is what you jump off of if you're a gimp. Papa asks what Jarnelle wants Clark to do with the dagger. Stab you! Ha ha! Thrust! (STAB!) No, not really. But that would be some cold shit, huh? Clark doesn't want to say anything. Papa Luthor says that he came to find Clark because he woke up that morning and found a note. It was a phone number by the stairs with writing that read, "Thank u 4 a funky time. Call me up whenever u wanna grind." Who's this Nikki chick who signed it? Is she from Krypton? Papa hands over the actual note. The symbols look like a sideways emoticon saying, "I'm bored," and a kite stabbing Charlie Brown's head. Papa asks Clark to tell him what it means. It reads, "I'm bored and want to stab Charlie Brown's head with a kite." Or, "sacrifice the vessel," Clark says. So why did he need Chloe to translate symbols last week if he can read "sacrifice the vessel" just fine? Is Clark hooked on Kryptonics? Papa asks Clark to explain. Papa wants to help, and acting all concerned, Papa says that Clark doesn't have to make this decision alone. Clark says that there's nothing anyone else can do. From behind, Papa puts his hands on Clark's shoulders, and says, "Don't underestimate me, son." Now call me Kate. Clark, who looks near tears, says that he's been asked to kill the human who will be the vessel for Zod. Clark explains that HomeZod will be destroying Earth, by the way. Clark says that he can't kill anyone: "You of all people should know that." Papa Luthor goes into ruthless mode, and tells Clark that the true test of a hero is knowing when the greater good would be served by an evil act. Papa says that to save the Earth, sacrificing one life is the price that must be paid. Emotionally for once, Clark asks, "Even if that life is your son's?" Then an amazing thing happens. Papa just stands there with no change in expression. "Lex is the vessel of Zod," Clark tells him. The camera goes back to Papa. His head sort of weaves in the air a bit, and his eyes roll as if he's about to faint. Papa turns his head back and sits down, his mouth open, his face woozy. Clark tells him that Lex was abducted in the morning, out in Mayer's Field. Papa Luthor turns to Clark, his eyes red, and says, "Mayer's Field, you say?" John Glover rocks the hell out of this scene, and as has often been the case, he brings up Tom Welling's game, too. Wow. Amazing acting.