Soul Taker (Soul Taker #1)

Amarantha is the last of her race, an ancient species that has lived among us for millennia, feeding on the life energies of humanity. Now enjoying a peaceful existence in a retirement community, she continues to consume just enough to survive. But Amarantha has made enemies throughout her long life and an ancient foe thought long defeated has returned and is out for blood, while a newer threat seeks to capture her for their own nefarious purposes! Now Amarantha must do everything in her power to vanquish her enemies and protect the life she has made for herself.