Download or read book Batman: Gotham Knights (2000-) #20 written by Dan Raspler and published by DC Comics. This book was released on 2011-09-14 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Retribution' part 1. Bruce Wayne makes a trip to Metropolis for a meeting with the new CEO of LexCorp and has a run-in with Superman. Meanwhile, Dick Grayson and Batman both have to deal with the possibility that all of Grayson's family isn't dead after all, when his grandfather comes to town!