The Book of Lairs (Advanced Dungeons Dragons Official Game Accessory, REF3, No. 9177)

From rear cover notes: "...With The Book of Lairs, TSR Inc. proudly presents the first in a series of groundbreaking AD&D accessories. This book contains over 60 fully developed adventures that can be easily inserted into any DM's campaign. These intriguing and innovative encounters are ready to play and will challenge player characters of all levels. No longer will you have to spend endless hours devising clever lairs and traps for monsters to spring on your PCs. Why make your players wait while you thumb through books and roll dice trying to scare up a random encounter? Here are ready-made adventures available instantly for almost any terrain and party level...."