Albrook.

Maryanne, 19, survives an attack from a beast she never knew was even possible; saved by a soldier that has been guarding her in secret all her life. But there's another worry, one that her soldier friend has barely told her now: It wasn't only her they wanted. They have to race to stop her sister Juliette from being taken by the kidnappers too. But there's something more: Behind their abductions, the knowledge they possess may end, not only this world, but many others. A forbidden form of Crafting.
And until recently, she thought she was just a boring young woman with a boring life. She realizes that's wrong, but she doesn't know yet how wrong she is.