The following information is from the Adventure Timecomic book series. It may not be part of the same canon or continuity as the animated series.
Adventure Time: Marceline Gone Adrift Issue 3 is the third issue of the 2015 mini-series.
Princess Bubblegum might have finally found a way to get Marceline, but that doesn’t mean things are going to get any easier for her. Marceline might be stuck with her new friends on this strange planet, but that doesn’t mean she’s got to like them...or be nice to them and what is up with this place anyway?!