1 Mike: Can we get on with exploring this dungeon and finding Will?
2 Lucas: Well, here it is. The Chapel of Evil. Don’t touch anything.
3 Lucas: The pews are trapped. The altar is trapped.
4 Eleven: What about that glowing orange archway with the skeleton pointing at it?
4 Lucas: What do you think?

I mean, spoilers, but yeah. You should probably just assume that anything in the place called the "Chapel of Evil" in the "Tomb of Horrors" probably isn't good to be messing with.

Again, I've coloured the black and white illustration of the Chapel of Evil provided in TSR's original adventure module. Although given the darkness overlay and the kids standing in front of it, you can't really get a good view of my colouring job. The paintings on the wall are also supposed to be life-like colouring, I think, but I couldn't be bothered to spend the huge amount of time doing that.