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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.

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      Letter: O Showing: 151–200 Total series: 1,008
      Scenarios for Girls 4 books
      by O'Dell, Nicole
      Primary Genre Christian
      Age Level Young Adult (12-17)
      Related Books 2 books
      by O'Dell, Scott
      Age Level Middle Grade (Ages 8-12)
      Seven Serpents 3 books
      by O'Dell, Scott
      Age Level Middle Grade (Ages 8-12)
      Cassandrah Farbanks 3 books
      by O'Dell, Sonnet
      Primary Genre Paranormal Romance
      Rivercast Immortals 7 books
      by O'Dempsey, Maggie
      Primary Genre Paranormal Romance
      Danger Is Everywhere 3 books
      by O'Doherty, David
      Age Level Middle Grade (Ages 8-12)
      The Arlanian Trilogy 3 books
      by O'Doherty, Mark
      Primary Genre Fantasy
      Bridgewater Bachelors 3 books
      by O'Donnell, Jodi
      Primary Genre Contemporary Category Romance
      Related Books 2 books
      by O'Donnell, Jodi
      Primary Genre Contemporary Category Romance
      Related Books - 2 2 books
      by O'Donnell, Jodi
      Primary Genre Contemporary Category Romance
      The Journeys of McGill Feighan 4 books
      by O'Donnell, Kevin
      Primary Genre Science Fiction
      Angel's Assassin 3 books
      by O'Donnell, Laurel
      Primary Genre Historical Romance
      Assassin Knights 2 books
      by O'Donnell, Laurel
      Lost Souls 4 books
      by O'Donnell, Laurel
      A Graphic Guide Adventure 6 books
      by O'Donnell, Liam
      Primary Genre Action Adventure
      Age Level Middle Grade (Ages 8-12)
      Tank & Fizz 4 books
      by O'Donnell, Liam
      Primary Genre Mystery
      Age Level Middle Grade (Ages 8-12)
      Tech Tales 3 books
      by O'Donnell, Liam
      Age Level Kids (12 & Under)
      West Meadows Detectives 2 books
      by O'Donnell, Liam
      Primary Genre Mystery
      Age Level Chapter Books (Ages 7-10)
      A Gwenn Ramadge Mystery 4 books
      by O'Donnell, Lillian
      Primary Genre Private Investigator
      Mici Anhalt 3 books
      by O'Donnell, Lillian
      Primary Genre Law Enforcement
      A Norah Mulcahaney Mystery 16 books
      by O'Donnell, Lillian
      Primary Genre Law Enforcement
      A Phil and Paula Oxnard Mystery 2 books
      by O'Donnell, Patrick Ian
      Primary Genre Police Procedural, Private Investigator Mystery
      Modesty Blaise 13 books
      by O'Donnell, Peter
      Primary Genre Espionage / Spies / CIA
      Modesty Blaise (First American) 8 books
      by O'Donnell, Peter
      Primary Genre Graphic Novel
      Modesty Blaise (Titan Graphic Novels) 30 books
      by O'Donnell, Peter
      Primary Genre Graphic Novel
      The Epic Erthelba 4 books
      by O'Donnell, Timothy R.
      Primary Genre Epic Fantasy
      Hamstersaurus Rex 4 books
      by O'Donnell, Tom
      Age Level Middle Grade (Ages 8-12)
      Homerooms and Hall Passes 2 books
      by O'Donnell, Tom
      Age Level Middle Grade (Ages 8-12)
      Space Rocks! 2 books
      by O'Donnell, Tom
      Primary Genre Action Adventure
      Age Level Middle Grade (Ages 8-12)
      Andromakhe 2 books
      by O'Donnelly, Kristina
      Gnomewrench 2 books
      by O'Donohoe, Nick
      Primary Genre Fantasy
      Healing 3 books
      by O'Donohoe, Nick
      Primary Genre Fantasy
      A Nathan Phillips Mystery 1 book
      by O'Donohoe, Nick
      Primary Genre Mystery
      A Kate Conway Mystery 2 books
      by O'Donohue, Clare
      Primary Genre Cozy Amateur Sleuth Mystery
      A Someday Quilts Mystery 7 books
      by O'Donohue, Clare
      Primary Genre Amateur Sleuth Mystery
      A World of Spies Mystery 2 books
      by O'Donohue, Clare
      Primary Genre Amateur Sleuth Mystery
      Inspector Mike Mulcahy 2 books
      by O'Donovan, Gerard
      Primary Genre Police Procedural
      Moone Boy 2 books
      by O'Dowd, Chris; Murphy, Nick Vincent
      Age Level Middle Grade (Ages 8-12)
      FBI Strike Force 2 books
      by O'Fallon, Tee
      Primary Genre Action Adventure, Contemporary Romantic Suspense
      Federal K-9 7 books
      by O'Fallon, Tee
      Primary Genre Contemporary Romantic Suspense
      K-9 Special Ops 4 books
      by O'Fallon, Tee
      Primary Genre Contemporary Romantic Suspense
      NYPD Blue & Gold 3 books
      by O'Fallon, Tee
      Primary Genre Romantic Suspense
      Related Books 2 books
      by O'Flaherty, Louise
      Primary Genre Historical Romance
      Ash Park 6 books
      by O'Flynn, Meghan
      Primary Genre Thriller
      Time-Travel to Regency England 2 books
      by O'Grady, Kristina
      Primary Genre Romance
      Related Books 2 books
      by O'Grady, Leslie
      Primary Genre Traditional Regency
      Tales of the Whosawhachits 3 books
      by O'Grady, Patricia
      Primary Genre Fantasy
      My Friend Flicka 2 books
      by O'Hara, Mary
      Age Level Middle Grade (Ages 8-12)
      Wolf Stockburn, Railroad Detective 4 books
      by O'Hara, Max
      Primary Genre Historical Western
      Agent Moose 3 books
      by O'Hara, Mo
      Primary Genre Mystery
      Age Level Kids (12 & Under)