This seems a quiet, peaceful place

[Mondkalb]

... or is it?
On a mini level with barely enough room to contain The Balrog of Moria and his escorts.
Found in angband-r92f8a3f246. Can this level feeling be correct?

[PowerWyrm]

Sure if you were on dlvl 50 or deeper...

[Derakon]

Don't trust level feelings. If they're not trying to convince you to stay on a level so you can figure out just what makes it "superb", then they're trying to lull you into a false sense of security so they can surprise you with something that couldn't possibly be there because it's too dangerous.