Where Flynne and her brother, Burton, live, jobs outside the drug business are rare. Fortunately, Burton has his veteran’s benefits, for neural damage he suffered from implants during his time in the USMC’s elite Haptic Recon force. Then one night...

Verity Jane, gifted app whisperer, takes a job as the beta tester for a new product: a digital assistant, accessed through a pair of ordinary-looking glasses. “Eunice,” the disarmingly human AI in the glasses, manifests a face, a fragmentary past,...