They Came In The Night by J.L. Melton

Michael Kenner's life is turned upside down when his small town is invaded by aliens from another world. Along with his loyal Yorkie-mix dog, Princess, Michael is taken to the planet Zarklin to help restore the balance of life and nature on the planet.

There he meets a special Zark female named Zookana and together with Princess, Octan, the creatures of Zarklin, and a half-Zark, half-human transplant named Bankaff, they must battle against the human transplants from Obelum.

As they fight to save the planet Zarklin, Michael and his companions face incredible challenges and dangers. Will they be able to save the planet and return home safely?