its early stages on Earth-51 due to the outbreak of a virus, which is causing humans to develop animal-like features, and animals to develop humanoid features. In Countdown #5, the virus claims Earth-51's Buddy Blank's daughter, but his grandson is safe. Una, an alternate Earth's version of the Legion of Super-Heroes Triplicate Girl, gives him her Legion flight ring, which he uses to safely get him to Cadmus' "Command D" facility, which was used to control Brother Eye, and has the defenses necessary to protect them from the virus' victims. As he settles in, he hopes that his grandson can forgive him for making him "the last boy on Earth". In Countdown: Arena #2, an ape Starman from Earth-17 mentions he is attempting to form a truce between the forces of Kamandi and Ben Boxer, indicating a second variant Kamandi Earth, unlike Earth-51. Kamandi and The Demon appear in "Devil's Play" written by Joe Kubert and Brandon Vietti with art by Vietti, published in Joe Kubert Presents #6 (May 2013). Final Crisis Kamandi is seen in DC's Final Crisis limited series, a sequel to the earlier Crisis on Infinite Earths and Infinite Crisis. In the first issue he appears in what seems to be a time distortion, asking Anthro, the "first" boy on Earth, for the weapon the New God Metron gave him, a reference to the series' opening scene in which Anthro, like Prometheus, is given knowledge in the form of fire. He makes another appearance in the second issue as one of the captives of the evil New Gods alongside Batman, warning the detective character Dan Turpin that they are making slaves of them. In the final issue, he appears on Earth-51 after it has been reconstructed. DC Rebirth As part of the DC Rebirth continuity and commemorating the 100th anniversary of Jack Kirby's birth, in January 2017 DC published the first number of The Kamandi Challenge, a 12-part limited series with each issue featuring a new creative team (a total of 12 writers and 12 artists for the miniseries), a concept loosely inspired on 1985's DC Challenge. During the Infinite Frontier Checkmate mini series, it's revealed he founded the organization as an adult named Kingsley Jacobs aka "King". Writers on the series included Dan Abnett, Peter Tomasi, Jimmy Palmiotti, James Tynion IV, Bill Willingham, Steve Orlando, Marguerite Bennett, Keith Giffen, Tom King, Greg Pak, Rob Williams and