The Host

The Host by Stephanie Meyer is a science-fiction/ romance novel that takes place in what seems to be the future, but could easily fit into a present-day setting.

In the universe that houses The Host, an alien race called Souls are transported to new planets and implanted into the habitants there, commonly known as their Hosts. At this time, Earth has become almost completely populated with souls, and very few humans remain in their own mindset.

The novel follows the human life of Wanderer, the soul that has lived on many more planets than is common. When she arrives on earth, she is placed inside Melanie, a Host who still lives within her, and has not been erased from her body. Wanderer can feel her emotions, hear her thoughts, and see what Melanie chooses to show her. She begins to fall in love with the people Melanie loves.Wanderer is scared, and feels like an abnormality. She considers requesting a new Host, but with Melanie living inside of her, Wanderer begins to see the human perspective of the invasion, and her view of Souls themselves begin to change... 

But what will become of the humans, and, in possesion of a secret only Wanderer knows, what will become of the Souls?

"I held you in my hands, Wanderer, and you were so beautiful." 

-Ian, The Host