«Ruin's Wake» by Patrick Edwards

A moving and powerful science fiction novel with themes of love, revenge and identity on a totalitarian world.
Ruin’s Wake imagines a world ruled by a totalitarian government, where history has been erased and individual identity is replaced by the machinations of the state. As the characters try to save what they hold most dear — in one case a dying son, in the other secret love — their fates converge to a shared destiny.
An old soldier in exile embarks on a desperate journey to find his dying son.
A young woman trapped in an abusive marriage with a government official finds hope in an illicit love.
A female scientist uncovers a mysterious technology that reveals that her world is more fragile than she believed.