Finch Merlin and the Locked Gateway

"With a mapped location and vials of Sanguine blood, Finch needs one last component to unlock the gateway to the lost city. If only that didn't mean returning to the place he despises most--Eris Island. After learning his chances of escaping servitude are next to nil, Finch vows to find another out. And his only shot means chasing after his greatest enemy. Plus, a certain Goddess of Light won't stop sticking her nose into his business"--Back cover.