Here's two dungeons that I'm turning into one of my PDFs (it will be Dungeon Maps Vol 9). I'll post the PDF once I have it ready.

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In the bottom dungeon, the fire symbols of room 4 represent a series of fire traps. I envision it as a series of small fireballs that shoot back & forth. The trick will be to time it right and run through them without getting hit. The open pit of 11a connects with the underground stream in 11b.