What is the first book in a duology of books from the late 90s by the author who wrote Heir to the Empire?
Specter of the Past
Heir to the Empire
Heir to the Empire
The Empire Strikes Back
Heir to the Empire
The Empire Strikes Back
Heir to the Empire
The Empire Strikes Back
Heir of the Empire
The Fall of the Empire
Heir to the Empire
Legacy of the Aldenata
The Heir to the Empire
The Empire Strikes Back
The Sword of Summer
The Empire's Edge
The Heir of the Empire
The Fall of the Empire
Heir of the Empire
Star Wars: The Last Jedi
Heir to the Empire
The Empire Strikes Back
The Sword of Summer
The Empire's Edge
The Heir to the Empire
The Way of Kings
Heir to the Empire.
The Heir of the Empire
Star Wars: Empire's End
The Dark Prophecy
The Fall of the Empire
The Darkest Hour
The Empire Strikes Back
Heir of the Empire
The Sword of Summer
The Empire's End
The Last Guardian
The Last Jedi
The Empire's Edge
Heir to the Empire
The Way of Kings
Star Wars: The Last Jedi
The Empire's Fall
Heir to the Empire?
Heir to the Empire.
The Emperor's Tomb
The Darkest Hour
The Empire Strikes Back
Heir to the Empire!
The Last Guardian
Heir to the Empire,
The Last Jedi
The Heir to the Empire
Ender's Game
The Fall of the Empire
Star Wars: Empire's Edge
Star Wars: A New Hope
Heir to the Empire
The Empire's End
The Dark Prophecy
The Empire's Edge
Star Wars: The Last Jedi
Heir of the Empire
Legacy of the Void
The Way of Kings
The Empire's Fall
The Heir of the Empire
The Sword of Summer
The Darkest Hour
Heir to the Empire?
The Empire Strikes Back
The Last Guardian
Star Wars: Empire's End
Heir to the Empire.
The Last Jedi
The Star Wars: The Last Jedi
The Fall of the Empire
Heir to the Empire,
Star Wars: The Last Jedi
The Empire's End
Ender's Game
The Empire's Edge
Heir to the Empire
Empire's End
The Last Guardian
The Sword of Summer
The Emperor's Tomb
The Last Jedi
The Empire Strikes Back
The Sword of Shannara
Star Wars: Empire's End
Heir of the Empire
The Heir of Star Wars
The Executioner
Star Wars: Empire's Fall
Legacy of the Drow
Heir to the Empire.
Empire's Edge
The Dark Prophecy
The Star Wars: The Last Jedi
Star Wars: The Last Jedi
The Fall of the Empire
The Empire's Edge
The Darkest Hour
Shadow of the Hegemon
The Winds of Winter
Star Wars: Empire's Edge
The Last Guardian
Legacy of the Void
Heir to the Empire,
The Last Jedi
The Execution of All Things
Heir to the Empire
Empire's End
The Empire Strikes Back
Infernal Devices
Ender's Game
Star Wars: A New Hope
Star Wars: Empire's End
The Heir
Empire's Edge
The Last Guardian
The Last Jedi
The Star Wars Trilogy
Heir of the Empire
The Fall of the Empire
Star Wars: Empire's Edge
Heir to the Empire.
Legacy of the Djinn
Heir to the Empire
The Executioner
The Empire Strikes Back
Ender's Game
The Sword of Summer
The Executioners
Infernal Devices
Return of the Jedi
The Last Wish
The Sword of Shannara
Star Wars: The Last Jedi
Legacy of the Drow
The Emperor's Tomb
The Last Hero
The Star Wars: A New Hope
The Execution of the Empire
The Last Guardian
Star Wars: Empire's End
Prince of the City
The Last Jedi
The Heir of Star Wars
The Execution of All Things
Star Wars: Empire's Fall
Fall of the Empire
The Heir
Legacy of the Dreadnaught
Empire's End
Heir to the Empire
Shadow of the Hegemony
The Fall of the Empire
Eragon
The Empire Strikes Back
The Darkest Hour
Shadow of the Hegemon
Star Wars: Empire's Edge
Ender's Game
The Last Guardian
Empire's Edge
The Winds of Winter
The Last Jedi
The Star Wars Trilogy
Star Wars: Empire's End
Ender in Exile
Legacy of the Force
Star Wars: A New Hope
Throne of Fire
Star Wars: Empire's Fall
Eragon: The Last Guardian
Eragon
The Executioners
Heir to the Empire
Shadow of the Sword
The Empire Strikes Back
The Star Wars: The Last Jedi
Prince of the Empire
Eragon: The Last Hero
Star Wars: A New Dawn
The Executioner
Dark Empire
Heir of the Empire
Star Wars: Empire's Edge
The Last Guardian
Ender's Game
The Last Jedi
The Heir
The Sword of Summer
Storm of the Century
The Way of Kings
The Last Wish
The Execution of the Empire
The Fall of the Empire
Prince of the City