the limited series Hourman, specifically issues #1, #5-7, #17, and #19-21 (April 1999 – December 2000). Amazo's origin is revealed in Secret Origins of Super-Villains 80-Page Giant #1 (December 1999). Another version is discovered to be part of a weapons shipment in Batman #636-637 (March – April 2005) and during the Villains United storyline in Firestorm vol. 2 #14-16 (August – October 2005), Villains United #5-6 (November – December 2005), and the Villains United: Infinite Crisis Special (June 2006). Amazo's consciousness returned in Justice League of America #1-5 (October 2006 – March 2007), planted in the body of fellow android the Red Tornado. Ivo also created Amazo's "offspring" in JLA Classified #37-41 (June – October 2007). A story continuing the first Red Tornado storyline featured in Justice League of America vol. 2 #21-23 (July – September 2008). Writer Mike Conroy noted: "Amazo was a persistent thorn in the JLA's side... although his programming and own sentience have displayed no ambition towards world conquest... His very existence is a hazard to all of humanity". Fictional character biography The android Amazo was created by Professor Anthony Ivo, a scientist with expertise in multiple fields who is obsessed with immortality. The original Justice League of America (Green Lantern, Flash, Aquaman, Wonder Woman, and the Martian Manhunter) discover their powers are being drained and somehow then being used by a thief who is after animals known to have long lifespans. While attempting to discover the perpetrator, the League is confronted and defeated by Amazo, who has duplicated their powers thanks to "absorption cell" technology created by Ivo. Amazo brings the team to Ivo, who reveals he has created a means of extending his life span courtesy of the data obtained from studying the creatures Amazo captured. The League then defeats Ivo and the android. Ivo's immortality results in his body becoming monstrous in form, and the android is stored in the League trophy room. The android is temporarily re-activated twice to assist the League in regaining lost abilities. In these and subsequent stories, the android's duplication of powers don't make others feel their powers being drained. When red sun radiation reaches Earth, Amazo reactivates and engages in an extensive battle with Superman involving time-travel, only to be defeated before it can murder Ivo and the League. Later, the super-villain called the Key, having been shrunken in size, re-activates the android in a failed bid