Those jewels you've been collecting are about to get a whole lot more infectious, as D3Publisher announced that its player-christened Puzzle Quest expansion, Revenge of the Plague Lord, will infest Xbox Live Arcade this Wednesday, July 23.

Develped by Puzzle Quest devs, Infinite Interactive, the 700 Microsoft Point update will offer a virulent mass of new content, including 25 new quests, 50 new spells, 40 new items, and four new heroes, as well as the ability to build up characters to level 60. In addition, Revenge of the Plague Lord will also add three new Achievements to the popular puzzler, giving us plenty to feed our fever until we look to the skies next year.

This article was originally published on Joystiq.