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      Book Series by Author: O

      Browse FictionDB book series written by authors whose last names begin with O, including book counts, genres, and age-level information for quick browsing.

      A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
      Letter: O Showing: 101–150 Total series: 364
      The Isle of Destiny 4 books
      by O'Malley, Tricia
      Primary Genre Paranormal Romance
      Mystic Cove 13 books
      by O'Malley, Tricia
      Primary Genre Paranormal Romance
      The Scottish Charms 2 books
      by O'Malley, Tricia
      Primary Genre Paranormal Romance
      Siren Island 7 books
      by O'Malley, Tricia
      Primary Genre Contemporary Romance
      Wildsong 4 books
      by O'Malley, Tricia
      Primary Genre Contemporary Paranormal Romance
      Angel Crest 3 books
      by O'Neal, Chelsea
      Primary Genre Paranormal Romance
      Scott's Kinfolk Saga 2 books
      by O'Neal, Chelsea
      Primary Genre Contemporary Romance
      The Last Highwayman 2 books
      by O'Neal, Katherine
      Primary Genre Historical Romance
      Related Books 3 books
      by O'Neal, Reagan
      Primary Genre Historical Romance
      Italian Royals 2 books
      by O'Neil, Annie
      Primary Genre Contemporary Category Romance
      A Donny Weston & Abby Marshall Thriller 6 books
      by O'Neil, David
      Primary Genre Romance
      The O'Malley Family 3 books
      by O'Neil, Sean
      Primary Genre Contemporary Romantic Suspense
      Southern Comfort 5 books
      by O'Neill, Lisa Clark
      Primary Genre Romantic Suspense
      Sweetwater 2 books
      by O'Neill, Lisa Clark
      Primary Genre Romantic Suspense
      Roman Time Travel 2 books
      by O'Neill, Morgan
      Primary Genre Romance
      Wish You Were Here 3 books
      by O'Neill, Robin
      Primary Genre Romance
      Age Level Young Adult (12-17)
      Related Books 2 books
      by O'Neill, Suzannah
      Primary Genre Romance
      The Bachelorette Pact 4 books
      by O'Reilly, Kathleen
      Primary Genre Contemporary Category Romance
      Harts of Texas 3 books
      by O'Reilly, Kathleen
      Primary Genre Contemporary Category Romance
      The Red Choo Diaries 3 books
      by O'Reilly, Kathleen
      Primary Genre Contemporary Category Romance
      Those Sexy O'Sullivans 3 books
      by O'Reilly, Kathleen
      Primary Genre Contemporary Category Romance
      When You Least Expect It 3 books
      by O'Reilly, Kathleen
      Primary Genre Contemporary Category Romance
      Infatuated Fae 4 books
      by O'Riley, Jeneane
      Primary Genre Contemporary Romance, Fantasy Romance
      Hamilton Cousins 3 books
      by O'Riley, Kaitlin
      Primary Genre Historical Romance
      Hamilton Sisters 5 books
      by O'Riley, Kaitlin
      Primary Genre Historical Romance
      The Devils 4 books
      by O'Roark, Elizabeth
      Primary Genre Contemporary Romance
      The Favorites 2 books
      by O'Roark, Elizabeth
      Primary Genre Contemporary Romance
      Summer 5 books
      by O'Roark, Elizabeth
      Primary Genre Contemporary Romance
      The Alternate World of Kiera Hudson 7 books
      by O'Rourke, Tim
      Primary Genre Paranormal Romance
      Kiera Hudson Series One 6 books
      by O'Rourke, Tim
      Primary Genre Paranormal Romance
      Kiera Hudson: Vampire Detective 3 books
      by O'Rourke, Tim
      Primary Genre Romance
      Samantha Carter 4 books
      by O'Rourke, Tim
      Primary Genre Romance
      A Sydney Hart Novel 2 books
      by O'Rourke, Tim
      Primary Genre Paranormal Romance
      Blood Feud 4 books
      by O'Shea, Patti
      Primary Genre Paranormal Romance
      Jarved Nine 3 books
      by O'Shea, Patti
      Primary Genre Science Fiction Romance
      Light Warriors 4 books
      by O'Shea, Patti
      Primary Genre Paranormal Romance
      The Paladin League 8 books
      by O'Shea, Patti
      Primary Genre Contemporary Romantic Suspense
      Ladies of Cascade Creek 2 books
      by Oakes, Annmarie
      Primary Genre Historical Romance
      Kingsmen MC 4 books
      by Oakes, Tara
      Primary Genre Romance
      Slayers MC 3 books
      by Oakes, Tara
      Primary Genre Romance
      The Cranford Sisters 3 books
      by Oakley, Adelaide
      Primary Genre Historical Christian Romance
      Gypsy Brides 3 books
      by Oakley, Adelaide
      Primary Genre Historical Western
      Beautiful, Brazen Brightwells 5 books
      by Oakley, Beverley
      Primary Genre Historical Romance
      Daughters of Sin 6 books
      by Oakley, Beverley
      Primary Genre Historical Romance
      Fair Cyprians of London 6 books
      by Oakley, Beverley
      Primary Genre Historical Romance
      A Georgian Romance 2 books
      by Oakley, Beverley
      Primary Genre Historical Romance
      Hearts in Hiding 6 books
      by Oakley, Beverley
      Primary Genre Historical Romance
      A London Ladies in Peril Mystery 2 books
      by Oakley, Beverley
      Primary Genre Historical Romantic Suspense, Mystery
      Matchmaking Mischief Makers 2 books
      by Oakley, Beverley
      Primary Genre Historical Romance
      The Dragonfate Games 5 books
      by Oakley, Hawke
      Primary Genre Contemporary Paranormal Romance