The New Teen Titans #16 (6.0) Newsstand

When a rogue H.I.V.E. agent kills Starfire's boyfriend Starfire plans to exact vengeance by killing the murderer. Wonder Girl convinces her that she must follow the laws of Earth and can not kill the murderer.; When people in Metropolis start acting like monkeys, Superman tracks the source of the problem to a ray coming from Pluto. Attempting to go to Pluto, Superman ends up in a dimension populated by talking animals where he meets Rodney Rabbit. Rodney tells Superman that on his world citizens are oddly acting like animals too. Charged by mysteriously glowing carrots and wearing a Halloween costume, Rodney joins Superman's investigation as Captain Carrot.