Cage of Eden Vol. 15 (Kodansha, 2014)

Sengoku and crew evade various pitfalls to venture further into the pyramid. As they finally reach the deepest levels of this structure, they will make their greatest discovery yet and come that much closer to figuring out just what happened on this mysterious island. Meanwhile, Kokonoe and Ohmori hatch a plan to escape their impending execution, but will it be enough to save them from a fiery death? From the Trade Paperback edition.