Meet Sonny Baca. He's a small-time Albuquerque private-eye on a big mission: to find the killer of his cousin Gloria. Neither beauty nor a hot-shot politician husband had protected Gloria from a ghastly end. Her body had been drained of its blood, and around her navel a strange insignia had been etched: the ancient Zia sun symbol. Sonny suspects a link to dark Aztec rites, yet searching for the truth leads him into the city's treacherous political arena, a fierce environmental battle, and the struggle between old ways and the new. It is the Zia summer, summer of the sun, bad blood and black magic - and it will force Sonny to face his deadliest case, fighting for his own life....and the survival of the city itself.