Queen Witch (Foulweather Twins, #1)
by J.R. Pearse Nelson
Sage Brighton possesses incredible power, but as a witch of the Queen family, and a twin, she will serve an immortal patron all her days. They are to be the Lady's Hands, her enforcers in the mortal, modern world. But first Sage must survive her training, learn to control her sociopathic sister without getting maimed in the process, and all the while try to keep something of her life for her own.