Kate Leth has become one busy woman. Not only has she stepped into the publishing sphere with work for Adventure Time and other Boom! Studios properties, she’s also been producing a set of her popular comic series Kate or Die for ComicsAlliance. That’s not all; there’s the collaboration with high-profile podcast Welcome to Night Vale and the founding of an international group of female comic-shop workers, appropriately named The Valkyries. But given the success of the charming, highly personal, and indisputably cool Kate or Die, it’s no wonder she’s involved in so many upcoming projects. Now she’s stepped into the role of graphic novel writer and teamed up with artist Zach Sterling to produce a full-blown Adventure Time story all about everyone’s favorite rock n’ roll vampire queen, Marceline, for Boom! Studios. We had a chance to talk with her about the upcoming graphic novel, how she has no time for “hateful garbage,” and more.