Write a suspenseful scene in which a character is being chased through a dark, abandoned building by an unknown assailant

Write a suspenseful scene in which a character is being chased through a dark, abandoned building by an unknown assailant. The character must navigate through twisting corridors, avoid obstacles, and desperately try to find a way to escape before it’s too late. The sound of footsteps and labored breathing echoes behind them, sending chills down their spine as they realize they are not alone. The tension builds as the pursuer gets closer and closer, with no sign of stopping. Will the character be able to outsmart their assailant and make it out alive?