Twenty-three intelligent species. One ancient mystery. And two humans thrust into the middle. Daniel Rice hasn't felt right since his return from a dystopian future. Curious dreams repeat with detailed precision. A voice - or something - seems to be calling him. His problem isn't medical, it's not even scientific, and it's driving his wife crazy. Nala is worried, and she's not the type to pace the halls while her overly analytic husband procrastinates...