They do it with mirrors
Agatha Christie
Miss Marple (6)
Before They Are Hanged
Joe Abercrombie
The First Law Trilogy (2)
DW17 - Interesting Times
Terry Pratchett
Discworld (17)
DW34 - Thud!
Discworld (34)
Ender's Game
Orson Scott Card
The Ender Saga (1)