Which book in the Discworld series was released in 2015?
The Shepherd's Crown
Discworld: The Last Olympian
The Last of the Time Lords
Nightmares and Dreamscapes
The Discworld Companion
The Witches of Eastwick
Discworld: The Last Olympian
Nightmare on Elm Street
The Last Olympian
Nightmares and Dreamscapes
The Discworld Companion
Discworld: The Lost World
The Dark Side of the Moon
Discworld: The Last Olympian
The Witches of Eastwick
Discworld: The Shadowlands
Nightmare on Elm Street
The Last Olympian
Discworld: The End of Time
Discworld: New Horizons
The Book of Shadows
The Discworld Companion
The Colour of Magic
Discworld: The Lost World
Discworld: The Last Olympian
Discworld Aftermath
The Dark Side of the Moon
Discworld: The Shadowlands
Out of the Silent Planet
The Witches of East End
Nightmares and Dreamscapes
Discworld: Shadowlands
The Last Olympian
Nightmare on Elm Street
Discworld: The End of Time
The Discworld Companion
Discworld: The Lost World
The Witches of Eastwick
Discworld Unbound
Discworld: The End of Days
Discworld: The Last Olympian
The Silmarillion
An Unearthly Child
Discworld Aftermath
Discworld: New Horizons
No Man's Sky
Master of Disguise
The Sword of Shannara
The Book of Shadows
The Last Olympian
The End of Time
The Colour of Magic
Out of the Silent Planet
The Witches of East End
The End of the World
Journey to the Centre of the Earth
Discworld: The Unexpected Journey
The Silver Chair
The Discworld Companion
Discworld: The End of Time
Discworld: The Last Kingdom
Discworld: The Endless Summer
Nightmare on Elm Street
Discworld: The Lost World
Discworld Unbound
The Dark Side of the Moon
Discworld: Shadowlands
Discworld: The Endless Night
Discworld Aftermath
The Witches of East End Street
I, Claudius
Discworld: The Last Olympian
The Witches of Eastwick Hall
The Discworld Companion Series
The Silmarillion
The Last Olympian
Discworld: The Unexpected
The Infinite Quest
Nightmares and Dreams
The Book of Shadows
The Silver Chair
The Sword in the Stone
Discworld: The Unexpected Journey
Ender's Game
Discworld: The End of Time
Nightmare at Eldest
The Swordsman's Tale
The Colour of Magic
The Sword of Shannara
Discworld: The Last Kingdom
Discworld: The Lost World
Master of Disguise
No Man's Sky
Discworld Unbound
The End of Time
Out of the Silent Planet
Discworld Aftermath
Discworld: The Last Olympian
The Witches of Eastwick
The Last Olympian
Discworld: The Unexpected
Journey's End
The Witches of East End Street
The Sword of Destiny
The Witches of Eastwick Hall
The Witches of East End
Book of Shadows
The Silver Chair
Discworld: Bloodlines
The Infinite Imperative
The Silmarillion
Discworld: The Endless Summer
Swords of Destiny
Journey to the Center of the Earth
Disco Inferno
The Infinite Quest
Discworld: The Last Kingdom
Discworld: The Endless Night
Discworld: The Lost World
Discworld: The End of Time
The Swordsman's Daughter
Discworld Aftermath
Discworld: The Shadowlands
The Last Olympian
The Dark Side of the Moon
Nightmares and Dreams
Discworld: The Dark Tower
Nightmare at Eldest
The Witches of Eastwick.
Discworld: Shadowlands
The Silver Chair
The End of Time
The Witches of Ypres
Discworld: The Unexpected Journey
Journey's End
Out of the Silent Planet
Discworld: A New Beginning
The Sword of Shannara
The Last Battle
The Swordsman's Tale
The Sword in the Stone
Discworld: The Endless Summer
Discworld Unbound
No Man's Sky
Discworld: The Endless Night
Discworld: The Lost World
The Silmarillion
Discworld: The Unexpected
Disco Inferno
The Last Olympian
The Discworld Companion Series
The Sword of Ice and Fire
The Discworld Companion
The Witches of East End Street
Discworld: The Last Olympian
Swordsman of Atlantis
The Silver Chair
The Witches of Eastwick Hall
Book of Shadows
Swords of Destiny
The Sword of Destiny
The Last Battle
The Invisible Man
Nightmare at Eldest
The Witches of East End
Discworld: The End of Time
The Witches of Eastwick
Discworld: The Last Kingdom
Nightmare on Elm Street.
The End of Time
Discworld: The Lost World
The Last Olympian
Nemesis
The Discworld Chronicles
Discworld Aftermath
The Silver Chair
Nightmares and Dreams
Discworld: The Last Olympian
The Infinite Quest
Discworld: The Endless Summer
The Last Battle
The Sword of Shannara
The Sword in the Stone
The Discworld Companion
Discworld: The Endless Night
The Silmarillion
The Lost World
Discworld: The End of Days
Swords and Spells
Nemesis
The Last Olympian
The Invisible Man
Master of Disguise.
The End of Time
The Dark Side of the Moon
The Silver Chair
Nightmare on Elm Street.
The Sword of Ice and Fire
The Last Battle
The Witches of East End Street
Swordsman of the Wastelands