From New York Times–bestselling author Ben Hatke comes a young readers graphic novel about Milo, a young boy who discovers a portal to a secret world in his basement.

It was supposed to just be a normal basement — some storage boxes, dust, you know, the usual basement stuff. But when Milo is sent by his mother to fetch a sock from the basement of the historic home they've moved into, he finds a door in the back that he's never seen before. Turns out that the basement of his house is enormous. In fact, there is a whole world down there. As Milo travels ever deeper into the Basement World, he meets the many Things that live in the shadows and gloom... and he learns that to face his fears he must approach even the strangest creatures with kindnesss.

With spare, simple text and lavish art, Hatke weaves a story of a journey deep into an underworld fraught with peril and unexpected revelations that will resonate with — and move — readers of all ages.