Mordru and Obsidian continue their reign of darkness over the world, threatening to destroy it—but the JSA has allies that will help turn the tide of this war. Plus, the final battle between father and son, Sentinel versus Obsidian! 'Princes of Darkness' concludes in this giant-sized issue.
Written By:Geoff Johns, David S. Goyer
Cover By:Todd Klein, Jesus Merino, Carlos Pacheco, J.D. Mettler