- Series: Alexis Silver, Mermaid Detective Series Record # 48357
- Series Tags: private investigators (2), mermaids (2), urban fantasy (2), immortality (1)
- Alexis Silver, Mermaid Detective
- 1 Silver Light (2017) by Matthew S. Cox and J. R. Rain
- 2 Deep Silver (2018) by Matthew S. Cox and J. R. Rain
- 3 Silver Quarrel (2019) by Matthew S. Cox and J. R. Rain
- 4 Silver Crucible (2020) by Matthew S. Cox and J. R. Rain
- 5 Silver Heart (2022) by Matthew S. Cox and J. R. Rain
- 6 Silver Kingdom (2023) by Matthew S. Cox and J. R. Rain
- Silver Escape (2020) [SF] by J. R. Rain
- Alexis Silver: Books 1-3 (2023) [O/1,2,3] by Matthew S. Cox and J. R. Rain
- Alexis Silver: Books 4-6 (2023) [O/4,5,6] by Matthew S. Cox and J. R. Rain
- Alexis Silver: The Complete Six-Book Series (2023) [O/1-6] by Matthew S. Cox and J. R. Rain