Children of the Lens (The Lensman Series, Book 6)

It was beginning to look as if no one could prevent the destruction of the Universe. For a strange intelligence was directing the destruction of all civilization from the icy depths of space. Kim Kinnison of the Patrol was one of the few men who knew how near the end was. And in the last desperate plan to save all life, he knew he had to use his children as bait for the evil powers of the planet Ploor. Twenty years have passed since the events portrayed in Second Stage Lensman. To Kimball Kinnison and his wife Clarrissa have been born five children Kit, the eldest, and two sets of twin sisters. These are the 'Children of the Lens' the offspring of uncounted generations of selected matings. The most capable, the most brilliant minds in the universe. Their job is the conclusion of the Boskonian war, and how they accomplish this end and gain ultimate victory makes up the greater part of the book