Killing On Command

For a world which seems perfectly normal, the Kingdom of Frevaan was anything but ordinary.
After 25 years of peace, three ancient Tribes have returned to file their revenge in fire, blood and anguish. Human lives are the least of their problems; the humans are too weak to fight for them.
Alexandria Cheshire and her twin sister Scarlotte had grown up oblivious to the imminent danger of the Sacred War of the Tribes, but they play a bigger part to the entire war than they think.
When Alex is recruited to join the Blood's Tribe in the night before her wedding day, she is relieved to be taken away from her fate. She must train to fight and kill; even if it means killing her family and friends in the process.
She either follows orders, or she dies.