Darkfallen: Making Jacob. Darkfallen, #4

Far and away from the minds of the people, Sarandin Isle stands as host and home to countless demonic beings, locked away within its prison walls. Amongst them rests many of those foolish enough to venture onto the isle in search of wealth and fame, only to find darkness and corruption. The fates of many amongst them may never be known, yet amongst the many are few whom catch the interest of their captors.
Amongst them stands Jacob, a man once overwhelmed and taken by the whims of the powerful succubus Kynthia within those walls. Now, Kynthia has returned with a new friend to show off her work to. As both enter Jacob's cell, the already emasculated man will learn he has had only a taste of the succubus' ability to warp and change the body. This time, Kynthia will do more than take him; she will make Jacob anew, and introduce him into a whole new world.