Key

As darkness fell and the noises outside faded, I decided to take my chance. The key turned in the lock without a hint of resistance, but just before I opened the door I heard footsteps. I froze and held my breath as, gradually, they receded into the distance and everything returned to silence.

I waited a long time, listening very carefully. Finally I drew in a slow breath and eased open the door. Fortunately, it opened without a single creak and I stepped out into the corridor, pausing and listening again.

B2 C7