This is one of the best of Gary Gygax's modules. It has all the elements of the other framework modules (such as Against the Giants and Descent into the Depths of the Earth), and adds a very evocative setting, that launched the whole idea of underground adventures in Dungeons & Dragons, most of which retain the major themes that are illustrated in this module. Drow are probably one of the favorite races that dungeon masters and players have, and Drizzt Do'Urden is one of the most popular Dungeons & Dragons characters.

This module requires a mixture of stealth and straight up combat. I believe that Gary says in the introduction that high level characters alone will not cut it, the module requires experienced players.

I have never run anyone through this particular module, and I can see that it will require lots of planning to do so. There are so many structures and economies going on to ensure that the players have a great experience. Again I recommend viewing the comic/map by Jason Bradley Thompson in conjunction with reading this module - it illustrates one potential adventure, with comedy. ( )