"The Rulers of the Lakes" is a complete story, but it is also the third volume of the French and Indian War Series, following "The Hunters of the Hills" and "The Shadow of the North." Robert Lennox, Tayoga, Willet, and all the important characters in the earlier romances reappear. Robert and his band of Indian braves spot an old nemesis as they spy on the enemy French camp. But instead of having their revenge there and then, they decide to follow the enemy troops to find out what their true intentions are…