The Misadventures of Seventeen Friends and a Unicorn in The Land of the Fandoms

It's all a relatively normal back-to-school process for Laura and co., but when Mikey goes missing and a mysterious man in a blue box appears to the group of friends, what happens and where are they lead to? Basically just as the title suggests, but nevertheless you must read on to find your fandom and extravagant plot twist! (Fandom suggestions will be taken to heart, have they not already - feel free to make suggestions)!