A thousand years ago, the mighty Cahokian civilization dominated the North American continent from its capital near modern St. Louis. From Wisconsin to the Gulf of Mexico, settlers and priests carried word of the power of their gods. People who wouldn't bow to that power were conquered or slaughtered. At the heart of the empire stood a vast city, teeming with tens of thousands. Power rested in one being, Morning Star, a god resurrected in the body...

A religious miracle: the Cahokians believed that the divine hero Morning Star had been resurrected in the flesh. But not all is fine and stable in glorious Cahokia. To the astonishment of the ruling clan, an attempt is made on the living god's life. Now it is up to Morning Star's aunt, Matron Blue Heron, to keep it quiet until she can uncover the plot and bring the culprits to justice. If she fails, Cahokia will be torn asunder in warfare, rage, and...