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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: 301–350 Total series: 1,008
      A Death Troupe Mystery 1 book
      by O'Neil, Vincent H.
      Primary Genre Mystery
      A Frank Cole Mystery 4 books
      by O'Neil, Vincent H.
      Primary Genre Mystery
      California Dreamin' 2 books
      by O'Neill, Amy
      Small Town 1 book
      by O'Neill, Amy
      Primary Genre Contemporary Romance
      Unraveled 1 book
      by O'Neill, Cathy
      Primary Genre Action Adventure, Fantasy
      Age Level Kids (12 & Under)
      A Liz Rooney Mystery 8 books
      by O'Neill, Dorothy P.
      Primary Genre Mystery
      Cal Wild Chronicles 4 books
      by O'Neill, Gene
      Primary Genre Speculative Fiction
      The Crime Files of Katy Green 2 books
      by O'Neill, Gene
      Circle of Friends: Just Off Main 3 books
      by O'Neill, Jennifer
      Primary Genre Christian
      A World Invisible 3 books
      by O'Neill, Joanna
      Primary Genre Fantasy
      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
      Italian Time Travel Book 2 books
      by O'Neill, Morgan
      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
      Give Please a Chance 2 books
      by O'Reilly, Bill; Patterson, James
      Age Level Picture Books
      A Michael North Thriller 3 books
      by O'Reilly, Judith
      Primary Genre Thriller
      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
      Dominion 3 books
      by O'Reilly, Mary
      Primary Genre Fantasy
      A Novel of Shakespeare's Dark Lady 2 books
      by O'Reilly, Sally
      Primary Genre Literary
      Mighty Mighty Monsters 17 books
      by O'Reilly, Sean
      Primary Genre Fantasy
      Age Level Chapter Books (Ages 7-10)
      The Dark Manor Chronicles 1 book
      by O'Riley, Jeneane
      Primary Genre Dark Fantasy, Fantasy Romance, Gothic, Horror, Paranormal Romance
      Infatuated Fae 4 books
      by O'Riley, Jeneane
      Primary Genre Contemporary Romance, Fantasy Romance
      Grumpy Old Wizards 5 books
      by O'Riley, John
      Primary Genre Fantasy
      The Winters Family Psi Chronicles 3 books
      by O'Riley, John
      Primary Genre Speculative Fiction
      Wizards of Seattle 2 books
      by O'Riley, John
      Primary Genre Fantasy
      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
      Dissonance 2 books
      by O'Rourke, Erica
      Primary Genre Science Fiction
      Age Level Young Adult (12-17)
      Mo Fitzgerald 3 books
      by O'Rourke, Erica
      Primary Genre Fantasy
      Age Level Young Adult (12-17)
      Halloween 3 books
      by O'Rourke, Kelly
      Primary Genre Horror
      Age Level Young Adult (12-17)
      The Alternate World of Kiera Hudson 7 books
      by O'Rourke, Tim
      Primary Genre Paranormal Romance
      Charley Shepard 1 book
      by O'Rourke, Tim
      Primary Genre Dark Fantasy, Mystery
      Age Level Kids (12 & Under)
      The Doorways Trilogy 3 books
      by O'Rourke, Tim
      Primary Genre Speculative Fiction
      Age Level Kids (12 & Under)
      Kiera Hudson Series One 6 books
      by O'Rourke, Tim
      Primary Genre Paranormal Romance
      Kiera Hudson Series Three 9 books
      by O'Rourke, Tim
      Primary Genre Fantasy
      Kiera Hudson Series Two 10 books
      by O'Rourke, Tim
      Primary Genre Fantasy
      Kiera Hudson: Vampire Detective 3 books
      by O'Rourke, Tim
      Primary Genre Romance
      The Moon Trilogy 3 books
      by O'Rourke, Tim
      Primary Genre Speculative Fiction
      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
      Tessa Dark Trilogy 2 books
      by O'Rourke, Tim