Amazon has DC Comics Batman Eternal #1 Kindle eBook for FREE (regularly $1.99) for a limited time. To get this deal, click “Enter a promotion code or gift card” (located below the Buy button) and use the promo code: BATMAN75. Discount will be applied automatically at checkout. Deal expires August 3, 2014.

Amazon has John Byrne’s Superman (1987-2006) #1 Digital Comic for Kindle for FREE ($6 Value) for a limited time.

Superman’s first adventure following the CRISIS ON INFINITE EARTHS mega-event just may be his last as he comes face-to-face with Metallo, the Man with the Kryptonite Heart!