The Faerie Knot, Celtic Magic book 3

Kidnapped by the Cailleach Bheur, Celtic Goddess of Winter, Mairi is without the aid of her friends as the earth sinks into a darkness brought on by the materialism of humans. Mairi must search deep within herself to find out if she has the power to help save mankind from the angry Dark Faeries as much as from the greed of humans, as she wonders if it might be better to set aside her Druidic ancestry and live in blissful oblivion like all the "normal" people. This is the third book in the Celtic Magic four book series, which centers on 15-year-old, Mairi,  a typical modern teen growing up surfing in San Diego and camping in Baja until her dad dies, turning her life upside down. When she discovers that the Celtic Fairy Tales from her childhood are actually her family history, Mairi is thrown into a world of magic, time travel, druids, faeries, and witches.