The Core: Book Five of The Demon Cycle
Peter V. Brett
Demon Cycle (5)
Dragon's Dawn
Anne McCaffrey
Dragonriders Of Pern (9)
The Age of Darkness
Christian Dunn
Warhammer 40,000: Horus Heresy (16)
They do it with mirrors
Agatha Christie
Miss Marple (6)
Babylon's Ashes
James S. A. Corey
The Expanse (6)