Frost with Charles C. McGraw ISBN:0-671-31943-4, $6.99 Paperback (August 2000) Sword of the Prophets ISBN:0-671-87776-3, $5.99 Paperback (August 2000) Demon Blade with Charles C. McGraw ISBN:0-671-87610-4, $5.99 Paperback (July 1994)