- Series: Robot Racers Series Record # 35893
- Series Tags: juvenile sf (4), robots (4)
- Robot Racers
- 1 Canyon Chaos (2013) by Dan Metcalf and unknown [only as by Axel Lewis]
- 2 Rain Forest Rampage (2014) by Dan Metcalf and unknown [only as by Axel Lewis]
- 3 Arctic Adventure (2013) by Dan Metcalf and unknown [only as by Axel Lewis]
- 4 Desert Disaster (2013) by Dan Metcalf and unknown [only as by Axel Lewis]