The Departure
K.A. Applegate
Animorphs (19)
Salute the Dark
Adrian Tchaikovsky
Shadows of the Apt (4)
Enemies on All Sides
Michael Chatfield
Maraukian War (4)
The Sorcerer's Daughter
Terry Brooks
Shannara (Chronological Order) (30)
Off to Be the wizard
Scott Meyer
Magic 2.0 (1)
One More Last Time
Eric Ugland
The Good Guys (1)
One of Our Thursdays Is Missing
Jasper Fforde
Thursday Next (6)
Only Superhuman
Christopher L. Bennett
Only You Can Save Mankind
Terry Pratchett
Johnny Maxwell (1)
The Opal Deception
Eoin Colfer
Artemis Fowl (4)
Open Sesame
Tom Holt
Orconomics
J. Zachary Pike
The Dark Profit Saga (1)
The ordeal of the haunted room
Jodi Taylor
The Chronicles of St Mary's (11.5)
The Order War
L.E. Modesitt Jr.
The Saga of Recluce (4)
Ordermaster
The Saga of Recluce (13)
Orion's Hounds
Star Trek: Titan (3)
Orphan Star
Alan Dean Foster
Pip & Flinx (3)
The Other
Animorphs (40)
Otherness
David Brin
Out of House and Home
Drew Hayes
Fred, the Vampire Accountant (7)
Outcasts of Order
The Saga of Recluce (19)
Outland
Dennis E. Taylor
Quantum Earth (1)
The Outsorcerer's Apprentice: YouSpace Book 3
YouSpace (3)
Overtime
Owlknight
Mercedes Lackey
Valdemar: Owl Mage Trilogy (3)
Owlsight
Valdemar: Owl Mage Trilogy (2)
Paint Your Dragon
Pandora's Star
Peter F. Hamilton
Commonwealth Saga (1)