Fatal Code by Natalie Walters
Elinor realizes that she had top secret information that her grandfather hid a long time ago. He was part of a group of scientists working on a nuclear energy project. She has to figure out what to do with it and how to keep safe as well. Her neighbor Kekoa is tasked with keeping her safe as she follows the clues her grandfather left behind. They soon connect and find there is more to the story than it seems. A real page turner and a great series. I received a copy to read, the review is mine.