Issue 4 is 33 pages about thieves and assassins. It covers historical tools and methods of thieves, assassins and the importance of timekeeping, thief and assassin classes for 0e (3LBB) games, a heist adventure into a wizard's tower for Castles & Crusades, adventure seeds for thief and assassin-focused adventure ideas, and a small number of magical items helpful to thieves and assassins.