Writer Geoff Johns and artist Ethan Van Sciver continue to race toward the gripping conclusion of FLASH: REBIRTH with the fourth installment in the mini-series that returned Barry Allen to the DCU. Allen left a legacy that thrived after his death. Now his return threatens it all. What secrets does Barry hold inside him about the fate of the Flash Family? What destiny awaits Wally and his twins? What murderous force targets Bart Allen? And what does it truly mean to be a speedster? You won't find all the answers here, but we've got a few. FLASH: REBIRTH #4 hits 8/26.