Snidely's study. "The Power of Four has worked before," Phoebe notes as she enters the chamber with Raige. Raige reminds Phoebe that they were all in the same universe at the time. It might be a bit more difficult to merge their powers now. The gals jaw their way through the room in search of whatever Snidely might have used to contact his evil twin until Phoebe notices the echo. She spots a fallen chess piece, crosses to slide open the arras, and finds Phauxhawk staring back at her through the mirror. The Raiges join them for a processing summit, during which the Bizarro Gals directly contradict Snidely's earlier assertion that "too much good [has corrupted their] world." Seems that folks on their side of the glass are having their limbs amputated for saying, "Gesundheit," not for saying, "Fuck you." So, either Snidely was lying to Barbas, or this show can't maintain continuity between scenes in a single episode, or the writers didn't think this concept through when they came up with this crap and thus have shattered the episode's interior logic. I don't care anymore. Long story short, the four realize they indeed cannot merge powers across the divide that exists between the two worlds, and so decide to cast spells on their respective Pipers to restore the Powers of Three. Once they've accomplished that, they'll reopen the portal, and Our Gals will give the Bizarro Gals a walking tour of the Bay Area until enough time has elapsed to shift the balance back where it belongs. Or something like that. Whatever.