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As they delve deeper, the building confronts them with its unsettling nature, trapping them inside as they are locked in a terrifying cycle of discoveries. After nearly escaping, they encounter a reality where nuclear destruction reigns, further confirming Harry’s theory about alternate Earths.

The Encounter with Paulie

Within this hostile world, they meet Paulie, a traveler between worlds, who confirms their suspicions regarding the building's abilities. She advises them to remain unseen and not interact with the locals, as the world they have stumbled into is rife with dangers and unexpected hostility.