"A campaign adventure for characters of levels 1-10"--Cover.
"Based on the original Dungeons & Dragons rules created by E. Gary Gygax and Dave Arneson and the new Dungeons & Dragons game designed by Jonathan Tweet ... [et al.]"--T.p. verso.
Dungeons & Dragons. expedition to Undermountain : campaign adventure. ISBN 9780786941575. Published by Wizards of the Coast in 2007. Publication and catalogue information, links to buy online and reader comments.