22 books • 3 series
Book #1: The Black Bat Archives, Volume 1
Book #2: The Black Bat Archives, Volume 2
Book #3: The Black Bat Archives, Volume 3
Book #4: The Black Bat Archives, Volume 4
Book #5: The Black Bat Archives, Volume 5
Book #1: The Crimson Mask Archives, Volume 1
Book #2: The Crimson Mask Archives, Volume 2
Book #3: The Crimson Mask Archives, Volume 3
Book #1: The Masked Detective Archives, Volume 1