[pyratejohn]

On the key for Tollenkar's Lair the text under "Entrance and Exits" describes the entrance as a white circle. It's actually a black circle with a red fill.*

The "Hidden and Locked Doors" example shows a door leading to 42 with an L3 label. To the right of this is a H4 L5 label. Either a door symbol is missing from the map at that point or it is meant to be a label for the shaft. If it is a label for the shaft, the shaft symbol should include a vertical line to represent the fact that it is a hidden and locked trap door.

*Note. Technically, as stated under the title, "The small star in the middle is the entrance." The first sentence under "Entrances and Exits" could be revised to read "A stairway or shaft leading from the surface to the first (red) level is indicated by a standard symbol (e.g., a shaft) and a small black star." The sentence under the title block could then be deleted.