I'm recalling there being a very interesting monk PrC or ACF from (I think) some Forgotten Realms sourcebook's web enhancement. After a bit of googling, I want to say it is the Dark Moon Monk, but that seems to primarily be in Champions of Ruin, but there is no web enhancement with monk specials in it, just a short module.
I recall that the monk ACF/PrC that I'm remembering was displayed in the Web Enhancement via a Drow house that lived off by itself (or at least, that's what I'm remembering).
But, I cannot for the life of me find this ACF/PrC, and am having trouble tracking this obscure class down.
Anybody have an idea of where to look?