This is one of the classic adventures i grew up with. I went through it as a player and died many times.... I then ran it in my AD&D game several times. It is an original d&d module and is an absolute classic. It is one of the best from the old judges guild (aside from Dark Tower or the city state). It will take quite a bit of work to update to 3rd edition, but if you like old school d&d, this one is a must.
[4 of 5 Stars!]