Part of a serial - contains cliffhangers
Found (Mate of the Cave Bear) Book One Of The Dualis
Curvy girl Jenna has been chosen to go back in time to mate with a cave man in order to save the human race. Some might see that as an honour, but Jenna is doing it for money. Tworn Corporation have paid off her mom's medical bills and when she returns they will pay her a large amount of money for her services.
That's the part that scares her. Because her "services" consist of going back in time to mate with a Neanderthal man. Attached by some kind of tether, once she is pregnant she will be pulled back through the wormhole and give her child to science.
Injured on landing and left to the mercy of a Neanderthal, Haran, she soon learns this is not going to be as easy as she thought. Because as time goes by she finds herself falling for her saviour and this new and exciting world.
Yet danger threatens in the form of the Masu. A terror that Haran will not explain to her. But when she learns of Haran's other side, the pieces start to fit together. Only it's much too late.