I am Number Four

Mogadore had let their planet go to waste. They sought to destroy the planet Lorien to gather their resources. Nine children escaped the planet to earth. The Mogadorians, too, are on earth trying to destroy them. However, the children have charms that mean they can only be killed in order, and they have done a good job hiding. I Am Number Four centers on the fourth of these. HE has realized that the other three have died by tatoos that have appeared. He has been moving about with his caretaker, Henri. Anytime there is something that may cause them to be noticed, they move. They try to live in rural places and slip under the radar. He finally starts to develop friends in Florida when something happens that makes them move. This time, he adopts the name John Smith and lives in Ohio. Alas, things start to get complicated. He gets bullied by a football player, and then falls in love with a girl. He also befriends a boy that is into aliens and conspiracy theories. At first, John tries to blend in, but as he develops his special powers, he uses them to save his friends. He has to tell them, and can't lie under the radar. Eventually, he is found out and a battle royale ensues. Quite a different coming of age story.
in the process, we learn that many of the human advancements came from Loriens. Even earth language was provided. Many of the important figures in history were caused by human/Lorien cross breeding. This helps explain how they could fall in love. The unfolding narrative works really well. There are some clues (like the special character of the dog, Bernie Kosar), that are guessable before the characters learn about it. This helps add to the fun.