CDC- High School Confidential
Ava Jones was head of the chess club. Until one day a portal appeared in front of her, dropping a wounded time traveler at her feet. He’d come back to find her, because she was the only one who could protect one of the two future saviors of mankind, code named ‘the Black King’. The traveler gave her a dagger, a shield generator, a ‘shadow suit’ that allows her to become nearly invisible, and the name of her charge before dying of his wounds.
Now, using her future technology, Ava must protect an oblivious first-line linebacker from the alien forces that are trying to prevent him from reaching his destiny, led by an elite alien soldier disguised as the head cheerleader. But two can play at strategy, and Ava is now the most powerful player on the board: the Black Queen!