Twenty years have passed since the events in Second State Lensman. Kimball Kinnison and his wife, Clarrissa, now have five children - the "Children of the Lens". As the offspring of generations of selected matings, they are the most brilliant and capable minds in the universe. Their mission: to conclude the Boskonian war.

Children of the Lens is the sixth and concluding volume of the classic Lensman series, long recognized as the greatest space opera ever written.