NEW YORK — John Green isn’t the only author in his family.

Green’s brother and YouTube collaborator, Hank Green, has a two-book deal with the Penguin Random House imprint Dutton. The first book is a novel about an art student and a sculpture of a giant robot, “An Absolutely Remarkable Thing.” Dutton, which also publishes John Green, announced Tuesday that the novel is scheduled for next fall. Hank Green said in a statement that he hoped the book would help capture the “really weird” historical moment we’re living in.

John Green’s “Turtles All the Way Down,” his first novel since the million-selling “The Fault in Our Stars,” comes out next month.