What time is it? Adventure Time! Every adventurer needs a journal to keep track of their heroic deeds! Join Finn the Human, Jake the Dog and the magical inhabitants of the Land of Ooo in this mathematical book of adventuring activities. With awesome puzzles, quizzes, lists and journal pages to complete, this is the perfect book for any Adventure Time fan. Featuring favourite characters Princess Bubblegum, Lumpy Space Princess, Marceline the Vampire Queen, the Ice King, Lady Rainicorn and more. Algebraic!