The Jewel of Alet Zhav
The most annoying adventure in the game.
Fight 1: Zombies. They will mob you and use Zombie Mob. An elf wizard can run away and auto-win, everyone else dies.
Fight 2: Burning Skeletons. Don't forget to switch all your weapons! Chops work great against zombies, not so much against skeletons.
Fight 3: More Zombies. Oops, switch weapons back! You start surrounded so the threat of being mobbed is back, plus it's harder to run around.
Fight 4: Alet Zahv. Wow is this fight stacked. 2 Skeletons to keep you honest, several tough zombies, and a necromancer who drops range spells and Cave In / Mud Pit. Oh, and it's a victory square scenario. Run forward to claim the squares, get mown down by damage spell after damage spell. Hang back, he drops a cave in and you can't get there in time. Pretty much just keep reloading until you get lucky.