Collaboration with Derryl Murphy, with an introduction by Charles de Lint. Published in hardcover by PS Publishing, November 2009.

• Signed, jacketed hardcover edition. Limited to 100 copies.
• Unjacketed hardcover edition.

Chapbook published by Spilt Milk Press, Summer 2007.

• "From Our Point of View We Had Moved to the Left" (F&SF, February 1993)
• "Kevin₁₇" (F&SF, February 1995)
• "Observations from the City of Angels" (Salon.com, July 16, 2003)
• "Strong Medicine" (Salon.com, November 10, 2003)
• "Objective Impermeability in a Closed System" (original to this volume)
• "Not of This Fold" (original to this volume)

Originally published in Asimov's Science Fiction, April/May 2006.

• 2007 Hugo Award nomination, best novella
• 2007 Nebula Award nomination, best novella
• 2006 Theodore Sturgeon Memorial Award finalist
• Locus Recommended Reading List, 2007
• Reprinted in Science Fiction: The Best of the Year, 2007 Edition, edited by Rich Horton (Prime Books)
• Reprinted in Czech in Trochu Divné Kusy 3, edited by Martin Šust (Laser Books)
• Translated into Japanese by Yoshio Kobayashi