Adventure Time Comics #17

Publisher: KaBOOM!, an imprint of BOOM! Studios
Writers: Jeffrey Brown, Michael Moreci, Pat Shand, Derek Laufman
Artists: Jeffrey Brown, Christopher Mitten, Spencer Amundson, Derek Laufman
Colorist: Eleonora Bruni, Joana Lafuente
Letterer: Warren Montgomery, Jim Campbell
Cover Artists:
Main Cover: Cole Closser
Subscription Cover: Benjamin Marra
Variant Cover: Christopher Mitten

Birthdays are celebrated, Marceline gets lumpy, and an underground city is revealed!