Time Warrior 1 Time of the Fox by Matthew J. Costello Time of the Fox by Matthew J. Costello (Roc, January 1990).
Time Warrior 2 Hour of the Scorpion by Matthew J. Costello Hour of the Scorpion by Matthew J. Costello (Roc, December 1991).
Time Warrior 3 Day of the Snake by Matthew J. Costello Day of the Snake by Matthew J. Costello (Roc, July 1992).