Worlds Unending

Timothy and Ata were not sure what they would find when they went searching through the old dusty volumes of the true Histories of Earth, but now they seem to have created an unstoppable chain of events, and they and Barbara are now stuck in the middle. The Worlds are not as they should be. There is a new danger brewing, that will bring the Light Travelers to the outer reaches of our galaxy and back again. All the Worlds of Men are now at risk, and not just Earth. But will the Light Travelers be able save humanity from this growing force? Will they even be able to save themselves?