After her father dies, Astrid moves into his house in Indigo Springs. She discovers her father had been accessing the magic that flowed, literally, in a blue stream beneath the earth, leaking into his house. But as events in Indigo Springs unfold, the true potential of the vitagua is revealed.

Indigo Springs 2010, Tor Books, New York

ISBN-13: 9780765359070

Mass-market paperback

Indigo Springs 2009, St. Martins Press-3pl, New York

ISBN-13: 9780765319470

Trade paperback