A novel featuring "aliens of real depth and conviction . . . and an absorbing narrative" from the Hugo Award–winning author of Beyond the Veil of Stars (Kirkus Reviews, starred review).

Porsche and Cornell fell in love as they infiltrated an alien world for the sake of humanity. But Porsche it turns out, is not human . . .

Now the two return to Earth only to discover a conspiracy so deep that it casts doubt on those to whom they've entrusted their lives, in this follow-up to the New York Times Notable Book Beyond the Veil of Stars—about which Publishers Weekly stated, "This may be one of the best science-fiction novels of the year."

"A visionary writer." —David Brin, New York Times–bestselling author of Insistence of Vision