In the second book of this inclusive near-future adventure trilogy, the kids from box #242 take a deep dive into a secret underwater world in hopes of finding their missing best friend and saving another from a life-altering bionic augmentation. Told through the alternating perspectives of Leo (they/them) and Jayla (she/her), the boxmates from the B.E.S.T. Academy are lost at sea and their best friend, Grayson Bix, is missing. Their hoverpod is busted,...