The Catalyst War Begins! As an alien army vaster than the stars descends on Earth, Nathan and Marshall have to make the biggest decision of their lives: which of them will be Radiant Black? Two timelines will be tested in the trials of The Catalyst War-and neither will escape unchanged! Radiant Black is a Massive-Verse series. Collects Radiant Black #25 A & B, #26 A & B, and #27 A & B.