I'm in an anthology coming out later this year called UNBOUND, with a short story you might call a distant prequel to ZERO WORLD. Pre-orders are now available for the hardcover edition as well as a very limited run of advance reader copies for the collectors out there. Links below!
Here is the amazing Unbound line-up:
Delilah S. Dawson
David Anthony Durham
Jason M. Hough
Mary Robinette Kowal
Michael J. Sullivan
Pre-order the limited run of advance copies!