Boucher's World: Emergent: Book One of the Boucher's World Trilogy

The people of Boucher’s World have been trapped inside a mysterious Dome that has covered nearly their entire continent since shortly after the Humans arrived on the world a little over two millennia ago. For ages, they have sought a way out, without success.
One day, a Human predult, a young woman named Jade, and her Cat partner, Tally, both employees of the leading pest company, Nuisance Apprehenders, Inc., were clearing pests from an area near the Dome wall and accidentally made a remarkable discovery: a door to the outside. This was reported to the authorities, and a preliminary expedition of ten, which included the two discoverers, was dispatched outside the Dome.

This book begins the chronicles of what happens when the people of this world - which also includes an alien race called the Elvwists - finally emerge from what had been a cage for them for so long. Will they discover who built the Dome and why? Or be able to contact their home worlds? And what happens to Jade when she is kidnapped by a man who "collects" young women? Will she be rescued in time?