Old school Dungeons Level 1

Here's level 1 of the Monster Pit I ran my first campaign in. Unfortunately faded pencil is not the best mediun for scannning so the lines are a little light in spots. I have used Paint Shop Pro to fix it up a bit. My favorite features (marked by numbers in circles) of this level include 1) the stairway which apears to go up but actually goes down 2) The double doors leading to the main dungeon with a bar on the entrance side 7) the Balcony overlooking second level 8) the hidden secret double doors to the staricase to second level and the rat tunnels under the floor (denoted by matching pairs of numbers).