In Jack and the Geniuses: At The Bottom of The World, readers meet Jack and his foster siblings, Ava and Matt, who are orphans. But they're not your typical kind of orphans--they're geniuses. In the second installment, In the Deep Blue Sea, Jack, his genius siblings Ava and Matt, and inventor Dr. Hank Witherspoon travel to the Hawaiian island home of Ashley Hawking, a technology billionaire. Hawking and engineer Rosa Morris have built a revolutionary electricity plant that harvests energy from the deep ocean, but someone has been sabotaging the project.