On the Martian Frontier in 2084, a mystery illness threatens to kill twelve-year-old farm girl Gloria Patri Fowler Cruz. This provokes her dad, Mama's aristocrat ex-husband Peyton, to defy social class divisions that ripped him from his family. And Gloria's new, wearable medical device doesn't work without an artificial intelligence. She substitutes her entertainment AI, dressed as a digital dog, Jake. Her AI develops human qualities, thanks to...