This module does a delightful job in modifying a classic idea for an adventure into something filled with a rich. It changes the tried and true Dwarven mines filled with spiders into something far more though provoking, crawling through it also takes you through a history and culture that adds the extra element of verisimilitude needed to make it a memorable experience.

There's a lot in here for a DM to build off of or add to - to expand a two hour adventure into a larger campaign.