Mark Your Calendars
The Time Bubble appeared on a Gotham City rooftop with minimal fanfare, drawing as little attention to itself as possible.  It was many years before the current generation of heroes would be born, many years before many of their parents would even meet.  It was an era were Gotham was blessed by three guardians, a Batman, a Robin, and a Batgirl.  It was a happier time and an era where the evil did not seem quite so terrible.

"The Calendar Man?" Dinah asked Riley.  "Really?  We're here to stop the Calendar Man?"