You begin to climb down. You are still wet from your recent swim, and you slip and fall part way down. Luckily, you find the floor is only about 5' below you as you land unharmed but sore from the climb. As you look around there is an all too familiar looking hallway. It is dark except the minimal light above you, and it seems that it goes on far out of sight given the depth of the shadows. The hall itself is 10' wide and a rough, natural rock material.