A Dangerous Year by Kes Trester

Seventeen-year-old Riley Collins has grown up in some of the world’s most dangerous cities, learning political strategies from her ambassador dad and defensive skills from his security chief. The only thing they didn’t prepare her for: life as an American teenager.

After an incident forces her to leave her Pakistani home, Riley is recruited by the State Department to attend Harrington Academy, one of the most elite boarding schools in Connecticut. The catch: she must use her tactical skills to covertly keep an eye on Hayden Frasier, the daughter of a tech billionaire whose new code-breaking spyware has the international intelligence community in an uproar.

Disturbing signs begin to appear that Riley’s assignment wasn’t the walk in the park she’d been promised. Now, Riley must fight for her life and Hayden’s, as those around her reveal themselves to be true friends or the ultimate betrayers.