Justice League (2011-2016) #43 (Justice League (2011-) Graphic Novel)

"The Darkseid War" event rages on as Batman takes a dark journey into the depths of Godhood and unlocks the forbidden knowledge of the DC universe! Meanwhile, arch-enemies Superman and Lex Luthor must stand together in order to survive, and WonderWoman leads the Justice League in an offensive against the Anti-Monitor and Darkseid! But what is Grail's true mission during this war—and what is the secret she holds over Wonder Woman?