The Storm Warrior series continues as Charles tours a construction site where trouble has developed, and Charles arrives in time to assist his employees that are being threatened and abused by local ruffians. Gray Wolf and Swimming Otter travel with Charles to construction sites, and watches how Charles handles stressful situations that they don't understand. Gray Wolf and Swimming Otter encounter hatred and prejudice from whites as they stand on a boardwalk waiting for Charles to arrive when the locals decide to attack the lone Indians. Charles asks Gray Wolf and Swimming Otter to accompany him to Boston for a slave buying trip, and for the first time they see what the slave auction is like, and don't like what they see. Judith begins teaching the Sioux women how to read and write the white man's words, and begins teaching them how to understand the money system.