It’s hard to believe that DC’s Rebirth initiative is going to celebrate its first birthday next month. DC promised a soft reboot that would restore its heroes back to their tonal values, a move that so far has resulted in changes both big and small. Superman is now more original than ever before because of really weird reasons, Wonder Woman’s origins are finally becoming clearer and Batman is actually a force of hope. Weird, but good, times. DC also promised an angle that the entire Rebirth event would be built around: Alan Moore and Dave Gibbon’s cult classic comic book series Watchmen. How do the gritty heroes of that world fit into the DC universe? That’s the mystery that began unfolding in Batman #21 this week