Make the Cosmic Barrier a Shield, Merge the Universes!

"How... how could you have gotten here so quickly?" As the scene before them changed, Peter and Ancient One successfully found Doctor Strange within an extradimensional space beyond reality. At that moment, he was floating in the air, holding an ancient book that radiated an intense dark aura, seemingly casting some powerful spell. Seeing Peter and Ancient One suddenly appear, his face filled with shock. "Ancient One, you actually..." "I'm actually still alive, aren't I?