A Fistful of Credits: Stories from the Four Horsemen Universe (The Revelations Cycle Book 5)Chris Kennedy, Mark Wandrey, Terry Mixon, Doug Dandridge, Jason Cordova, Kevin Ikenberry, Kacey Ezell, Jon Del Arroz, Brad R. Torgersen, Christopher G. Nuttall, Charity Ayres · First published 2017Open the Tome
Environmental MedicineJon Ayres, Roy Harrison, Gordon Nichols, Robert Maynard CBE · First published 2010Open the Tome
