The Catalyst War Concludes! Both Nathan and Marshall are pushed to their limits by the alien force that originally forged the Radiants-but only one will do the unthinkable to emerge victorious. The Catalyst War ends here-and the future of Radiant Black will never be the same! Radiant Black is a Massive-Verse series. Collects Radiant Black #28A-B, #29A-B, and #30A-B.