DCI Ryan Mysteries is a 22-book series with 23 primary works first released in 1920 with contributions by L.J. Ross. The next book is scheduled for release on .
2015 • 25 Readers • 372 pages • 4.4
2015 • 12 Readers • 414 pages • 4.4
1920 • 9 Readers • 264 pages • 4
2017 • 8 Readers • 263 pages • 4.5
2017 • 7 Readers • 287 pages • 4
1920 • 7 Readers • 274 pages • 4.3
2018 • 5 Readers • 284 pages • 4.4
2019 • 6 Readers • 291 pages • 4.5
2019 • 4 Readers • 249 pages • 4.1
2019 • 5 Readers • 215 pages • 4.1
2020 • 4 Readers • 226 pages • 3.6
2020 • 4 Readers • 345 pages • 3.8
2023 • 5 Readers • 311 pages • 4
2024 • 1 Reader • 234 pages • 4
2024 • 1 Reader • 311 pages • 4