Ryan Time: Ryanverse Book 19

There is a time for everything under the heavens. A time to kill and a time to heal. A time to love and a time to hate. But when it's a time war you're looking at, it's Ryan Time. Jon is called back two billion years to save the Earth from an unprecedented threat. A alien clan is stealing time. It uses that time energy to power its quest to amass even more time. Soon, there will be no time for any race but them. No civilization has yet been able to even bloody the clan, let alone stop them....