Write a suspenseful scene where the protagonist is being chased through a dark alleyway by an unknown assailant

Write a suspenseful scene where the protagonist is being chased through a dark alleyway by an unknown assailant. The sound of heavy footsteps can be heard echoing off the walls as the protagonist frantically searches for a way to escape. The tension builds as the pursuer gets closer and closer, their breath hot on the protagonist’s neck. Just as it seems like all hope is lost, the protagonist spots a narrow passageway and dives into it, hoping to evade their relentless pursuer.