Half-Breed

Amber, Kathy, and Theresa have each spent their lives being looked down on by the peoples they were born among, because each is part of two worlds. Then they learn that a shared human father links them. Called back to Earth, they set out on a long trip across space, but an unseen force keeps trying to keep them from reaching home. Their ship goes down on several different planets, and as they struggle to resume the journey, they uncover more about where they come from and the secret that ties the three of them together.