Molly of Mars and the Alien Syndicate

Molly Lennox is a typical teenager, living a typical teenage life on the planet of Mars. Her alien sister, Pirra, and her best friend, Vicky Valentine, are always ready to assist her on her latest adventure. Molly's mother has been coming down hard on her lately and she can't figure out why. She is on her last chance or else.

But when she witnesses a kidnapping and no one believes her, her unrelenting determination and undying guilt from the alien war drive her to catch the perpetrators. She grabs her trusty stun gun and she risks everything, including her family to rescue the victims and uncover a dark Martian secret.

For ages 10+, same reading level as Harry Potter.