Edited by Larry Correia & Kacey Ezell, No Game for Knights is an anthology of sci-fi noir detective stories (don’t let the gun-toting gladiator on the cover fool you). While not one of Christopher’s books, it does feature one of his stories:

“Gutter Ballet” returns us to the world of the Extrasolarians, to the cracks between Imperial civilization, where a dropout—a former knight with an artificial heart—must fight to save a homunculus girl in deep over her head, and solve her sister’s apparent murder.

You can pre-order the book here, or get it wherever books are sold.

(Please note that “Gutter Ballet” will eventually appear in Tales of the Sun Eater, Vol. 3).