Need a bit of help with a title

I've been working on this mega module, I'm not going to spill too much at this point, as its still in the works.  But I'm having trouble with a title.  I know something may come to me as I continue to right.  At this point the working title is "Underworld Ingredients".  But that just doesn't have a awesome ring to it really.  Another one that came to mind is "Underworld Atrocities", which is a bit better.  I would like the world Underworld used in the title, because its going to be very old school, all underground, not dungeons per se, but a map crawl underground basically.

Any thoughts would be appreciated.