Gasping for breath, Sionn is surprised to find things going immediately quiet as soon as she closes the door. Perhaps these zombies were controlled by someone, and their orders prevent them from trying to break the door? It's a good thing were that true, as she can see that there's no easy way down this corridor. It's a long jump, especially for her even if she were fresh. Since she doesn't feel like being torn to bits by zombies back the way she came, she examines the walls of the corridor, seeing if she might be able to climb across the gap, as she suspects the jump would be too difficult for her.