After engineering the artificial-intelligence-powered catbot Alan Purring three years ago, seventeen-year-old Esperanza Suarez is now a machine learning aficionado and has befriended her former bullies. But her seemingly perfect life starts to unravel when her best friend Noelle moves back to California and butts heads with her. What's worse, Esperanza's abuelita slowly begins to succumb to a deadly disease. Can Esperanza use artificial intelligence to decode the tangled strands of her grandmother's DNA and save her? Or will time slip through Esperanza's fingers and make her lose everything?
