I should not exist. But I do. Eva and Addie started out the same way as everyone else—two souls woven together in one body, taking turns controlling their movements as they...

I am lucky just to be alive.Eva was never supposed to have survived this long. Asthe recessive soul, she should have faded away years ago. Instead, she lingers in the body she...

To change the world, I may lose everything.All Eva ever wanted was the chance to be herself. But in the Americas, to be hybrid—to share your body with a second soul—is...