Over the shimmering ocean, up the huge, high mountain, through the deep, dark forest . . . WE'RE GOING TO FIND THE MONSTER! Join two intrepid adventurers as their imaginations transform their house into a wild wonderland—and their big brother becomes a mighty monster. A joy to read-aloud with its cumulative refrain, and full of funny, relatable characters, this is a contemporary celebration of creativity, fantasy and family. Written by bestselling author of Noughts & Crosses, Malorie Blackman, this story was originally published as Marty Monster. This new version has been stunningly brought to life by the award-winning illustrator of Look Up!, Dapo Adeola.