Batjokes Headcanons!

Batman finds out some things about Robin, Robin finds out some things about Batman. Now walk down there path with them to see how everything turns out. For better, or for worse.

In Gotham, something strange happens, well, stranger than usual. Everyone under the age of 18 disappears from those over the age of 18 and vice versa. Can Batman, Robin and all of the Justice League save Gotham and uncover the mastermind behind the disappearance before it gets out of hand? Only 5 chapters. I do not own any of these characters, DC Comics do.