BRIGHTEST DAY continues with the start of an all-new, 5-part JLA/JSA crossover! The return of one hero heralds the release of the powerful Starheart that empowers Green Lantern Alan Scott. Now this chaotic force is unleashed on Earth, causing magic to go wild - and new metahumans to emerge! It's more than one super-team can handle, but can even the combined efforts of the Justice League and the Justice Society contain the light and dark power wielded by one of their own? Witness the transformation of the moon and a journey into the Shadow Lands that will corrupt a hero! Continued in next month's JSA #41, this epic event features a 5-part connected cover spotlighting both teams in glorious action illustrated by Mark Bagley with inks by Jesus Merino!