AC2 Combat Shield and Mini-Adventure is a 14 page accessory designed for the Dungeons & Dragons role-playing game. David Cook wrote Combat Shield and Mini-Adventure as a supplement with two purposes in mind. First it included a screen to hide Gamemasters material and dice rolls during the course of play and provide useful tables for quick reference. Secondly, a small adventure, The Treasure of the Hideous One, came in the same supplement.