Stardark - How Things Must Always Be (Book 3) Fallen Stars Series

Seren knows that her choices are limited. Lucia has her right where she wants her and escaping her evil clutches isn't going to be an easy feat. That’s what she has to do, though: she has to find a way of getting away from Lucia, before Lucia has a chance to torture the darkness out of Seren. With only hours to spare before Seren’s birthday hits and the darkness reaches its full power, the risks are high and the chances of failure are even higher. Will Seren be able to fight her way through the lures of the darkness or will she become the monster she has always been destined to be?