Apparently a Nebula Award‐winning author, I’d not heard of Robert Metzger before. The back cover of CUSP certainly has an astounding list of blurbists: David Brin, Greg Bear, Gregory Benford, and Robert J. Sawyer, each touting it as hard scifi. CUSP starts out as a near‐future hard scifi story, but it quickly enters what I’d call fairy‐tale land. And to top it off, it has a non‐ending ending. If it hadn’t been the only book with me on a short trip, I’m not sure I would have finished it.