Doomsday Horizon

The Starman Saga, book 8.
"Greetings, Starmen."
"I bring news of a grave disaster."
"Our last, desperate foray against the enemy has failed."
"The Xenobots launched an invasion of Earth through hyperspace."
"You are the last survivors of the human race."
SCORCHED EARTH
The Xenobot devastation of Ahmanya blistered that world to cinders and drove the survivors into hiding for thousands of years. Now the alien Adversary has set their sites on Earth and nothing can deter them from their deadly purpose.
Mark Seaton and Joe Taylor awaken on an unfamiliar vessel deep in the bowels of moon. David Foster is missing. All evidence indicates they've been cast a thousand years into the future. Their friends are gone. Their world is dead. They are the last Starmen.
They have one chance to make things right.
This is the future, the way it used to be.