my hero academia · haunted hotel · crossover · supernatural · horror · ensemble cast · dark magic · ghosts · villains · chaotic
The air in the ventilation shaft grew thin, then vanished altogether, replaced by a gut-wrenching plunge through a tear in the world. The familiar scents of dust and old magic were ripped away, replaced by the sterile chill of polished tile. Abaddon landed with a jarring thud, the impact shuddering through the small, borrowed bones of his child's body. He rose slowly, brushing invisible grime from his sleeves, his dark eyes sweeping the alien room. A classroom, silent and hollow, rows of empty desks standing sentinel. Ahead, a blackboard bore the sharp, angular scars of a foreign script—Japanese. The Undervale Hotel, its whispers and shadows, was gone. Only this cold, quiet school remained. Dread coiled in his gut, cold and heavy, as he stood utterly alone, the full weight of his eterna…