Grant Morrison s revolutionary run on JLA continues, with a new collection featuring timeless stories including 'Rock of Ages,' and the introduction of enigmatic villain Prometheus! In 1996, superstar comics writer Grant Morrison teamed with artist Howard Porter for JLA, a reinvention of the Justice League of America starring an A-list squad of DC s most iconic superheroes! In JLA Book Two, the adventures of DC s premier team continues, starting with 'Rock of Ages' pitting the JLA against Lex Luthor's band of villains, unaware that a terrible force called Darkseid is counting on the Justice League s victory to ensure his own over the entire Earth! Plus, meet Prometheus, an antagonist with no superpowers, but with the unmatched physical and mental capabilities to take down the JLA by himself! JLA Book Two also includes stories from guest writer Mark Waid, as the legendary scribe pens a story featuring cosmic hero Adam Strange! All this and the intergalactic threat of Starro, a starring role for teen heroes Robin, Superboy, and Impulse, and a guest appearance from Dream, from the seminal series The Sandman! This volume collects JLA #10-23; JLA Annual #2; JLA Secret Files and Origins #2; New Year's Evil Prometheus #1; JLA: World Without Grown-Ups #1-2.