The Sacrifice (Legends of Transylvania series #1)    by Elena Lasina
Price: $0.99 USD. 24860 words. Published on January 31, 2013. .
Two young children named Alexander and Ariana are inseparable until their parents are killed and their lives fall apart. Having lost contact with each other, they meet again 13 years later when they fall in love, and become embroiled in a bitter feud between vampire and other supernatural factions. Curses cast upon them cause Alexander to become a vampire and Ariana to become a wild jaguar..