The Fabric of Reality
Gil Thorn never expected to fall in love with a woman in a parallel universe he can't reach. Alesia never expected to find the man of her dreams on the other side of reality, waiting for his enemy to kill him.
Trapped in an ancient fortress, Gil is the last hold-out against militarized radical fanatics. The protective equipment keeping him alive is failing faster than he can repair it. His only hope lies with Alesia discovering technology that will allow him to cross over to her side.
On Alesia's Earth, the time of the human race is winding down. A biological weapon unleashed in a long-forgotten war, has doomed them to reach zero population growth. The wealth of knowledge accumulated over the eons has been lost, and the remaining people exist as their medieval ancestors once did. For any hope of saving Gil, herself, and her people, she must unlock the secret of the forbidden fortress before Gil's adversaries overrun his defenses.