- Series: Alex Balfour / Pastmaster Series Record # 4324
- Series Tags: time travel (6)
- Alex Balfour / Pastmaster
- 1 Time After Time (1985) by Allen Appel
- 2 Twice Upon a Time (1988) by Allen Appel
- 3 Till the End of Time (1990) by Allen Appel
- 4 In Time of War (2003) by Allen Appel
- 5 The Sea of Time (2012) by Allen Appel
- 6 The Test of Time (2015) by Allen Appel