Black Hammer/Justice League is the mystery crossover event of the summer 6 photos Next GalleryStarbucks gaffe beautifully saluted in new Game of Thrones art series 448796Credit: Dark Horse Comics 448797Credit: Dark Horse Comics 448799Credit: Dark Horse Comics 448801Credit: Dark Horse Comics 448802Credit: Dark Horse Comics 448803Credit: Dark Horse Comics 448804Credit: Dark Horse Comics 448806Credit: Dark Horse Comics 448807Credit: Dark Horse Comics 448808Credit: Dark Horse Comics Previous Pause Next 1 of 10