- Series: Penrose Universe Series Record # 32508
- Penrose Universe
- Four Blind Horses (2012) [SF] by Tony Ballantyne
- Janet Verdigris (2012) [SF] by Tony Ballantyne
- Isabel and the Outlandish Robots (2012) [SF] by Tony Ballantyne
- The Robot Behind Me (2012) [SF] by Tony Ballantyne
- Penrose
- 1 Twisted Metal (2009) by Tony Ballantyne
- 2 Blood and Iron (2010) by Tony Ballantyne