Obsolete Theorem

A time jump. A fight for survival. A bond between species.
It wasn’t possible, but then it happened…

A Neanderthal’s 47,000-year-old remains are found in Spain. That’s not unusual, but positioned beside the woman’s skeleton is something that shouldn’t be there—a robotic drone. Lincoln Woodhouse has some explaining to do.

When confronted with the evidence, Lincoln cannot deny that the drone is one of his own models. After all, he routinely jumps his drones into the past to collect environmental data. The problem is, this drone shouldn’t even exist in Lincoln’s universe. Everyone knows sending a drone into the past creates an alternate timeline.

The implications of the discovery are staggering, and Lincoln is ordered to jump back in time to investigate, even though no human has ever done so before. Upon jumping, he and his team find themselves in a world of deadly creatures and savage beings.

Amidst the primeval chaos, Lincoln encounters Skyra, a woman unlike anyone he has ever known. She is a skilled hunter and vicious fighter. She is not human, but she just might hold the key to humanity’s future.

Obsolete Theorem, the first book in the new Across Horizons series, is perfect for readers who love time travel, deadly creatures, wilderness survival, and unforgettable characters.

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