Cirrus@Austlit

'Ever since he awoke one day on the floor of his workshop with a brain-splitting headache, Asher Quigley has been haunted by fleeting visions of a beautiful woman everywhere he looks–a woman he's sure he knows, but can't recall. In spite of this he has finished his most wondrous invention yet, one that will literally make history: a time machine. But before he can complete his exacting calculations a bizarre accident causes the device to be activated, with him inside! He awakes to find himself in his lab, eight months in the past, and suddenly he remembers her...

'Asher knows that something in the near future causes Minerva Lambkin, the woman who turned down his marriage proposal, to be erased from existence. And he's sure it has something to do with his device. Alone in a familiar world where he doesn't belong, he'll have to find a way to destroy the time machine to save the woman he loves from extinction. Even if that means erasing his own future.'

Source: Publisher's blurb.