kengr

I have copies of *all* of Grimtooths Traps (I forget how many there are. at least 5 books)

But no, I came up with these long before that.

Of a fun one that the players actually ran into.

The room's ceiling was a bright yellow. They used their torches to inspect it but didn't see anything special. So they went back to examining the contents of the room.

I was idly rolling dice and at some point I informed a player that his character had a sharp burning pain on the back of his neck.

He discovered something yellow and a blister. Upon looking around they realized that drops of yellow liquid were falling from the ceiling and that i was burning with an almost invisible blue flame.

They also realized that their throats were burning. They hurriedly left the room and shut the door behind them.

Yes, the ceiling was sulfur and one of the torches had ignited it.

Since I'd accidentally ignited a block of sulfur in my basement lab once, I was checking to see how long it'd take to notice. The dripping happened before anyone realized it was getting hard to breathe (sulfur dioxide sneaks up on you).

Next trip, they checked the room again and there was a layer of smoke/fog about 3 feet thick on the floor (a bit of a reach, perhaps, but I went with it).

They were trying to search the room for anything they hadn't checked before their hasty departure. It was slow going as they quickly learned that they didn't want to stir things up too much. The smog was *nasty*.

The the door on the opposite side of the room opened. Stayed open a minute then closed.

They were immediately on guard. There might have been some swirls in the mist but it was hard to tell.

Suddenly there was a definite swirl. Had something poked up out of the mist? There! It happened again, but in a different spot.

Now the the two giant snakes had done an "up periscope" to locate the party, they swiftly slithered to the attack.

Interesting battle. :-)