Princess Bernice Pauahi Bishop was the largest landowner and richest woman in the Hawaiian kingdom. Upon her death in 1884, she entrusted her property--known as Bishop Estate--to five trustees in order to create and maintain an institution that would benefit the children of Hawai'i: Kamehameha Schools. A century later, Bishop Estate controlled nearly one out of every nine acres in the state, a concentration of private land ownership rarely seen anywhere in the world. Then in August 1997 the unthinkable happened: Four revered kupuna (native Hawaiian elders) and a professor of trust-law...