From the "back cover"
Thieves' World has enthralled fantasy fans for over 25 years and now you can join the adventures! This slipcase includes everything you need to have exciting roleplaying adventures in the original shared world using the d20 system. The set includes the four original Thieves' World titles from Greeen Ronin: The Thieves' World Player's Manual, Shadowspawn's Guide to Sanctuary, Murder at the Vulgar Unicorn, and the Thieves' World Gazetteer. It also includes a brand new adventure, Black Snake Dawn, which takes place during Sanctuary's classic era. Together these five books give you a complete look at the Thieves' World setting and reveal many previously unknown details of its history and personalities. There's even a new short story by Lynn Abbey herself! The Thieves' World Gift Set is something no Thieves' World fan will want to be without.
user summary
the five books are:
Black Snake Dawn
Murder at the Vulgar Unicorn
Shadowspawn's Guide to Sanctuary
Thieves' World Gazetteer
Thieves' World Player's Manual