The Four Horsemen of the Apocalypse gather on an island, where War prepares to lead them to Earth's ultimate doom. A handful of no-longer ordinary humans, accidentally transformed by the Horsemen themselves, are ready to stand against them. Earth's fate will be decided.
Used availability for Charles L Grant's Riders in the Sky
December 1999 : USA Hardback
August 2000 : USA Mass Market Paperback
October 2013 : USA, Canada, UK Kindle edition