Download or read book Justice League of America (1960-) #158 written by Gerry Conway and published by DC Comics. This book was released on 2018-08-16 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: ÒTHE SUPER-POWER OF NEGATIVE THINKING!Ó Ultraa, the superhero from Earth-Prime, decides that the very existence of super-powered beings, whether heroes or villains, is a threat to life on Earth. He uses a negative-radiation device to alter the JLA heroesÕ perceptions so that they are unable to use their powers!