Norman Two Bull is a modern and savvy fifteen-year-old Sioux who lives on a Dakota reservation with his parents. He is impatient with, if not faintly contemptuous of, the "old ways." Encouraged by his grandfather, Norman makes a perilous climb to the top of a sacred butte, searching for agates where Indian boys had once gone for spirit visions. There, unexpectedly, he finds an ancient relic with the power to make strange things happen--and they do! When Thunders Spoke is a haunting story whose strength often lies in what is not said.