They do it with mirrors
Agatha Christie
Miss Marple (6)
The Ark
Boyd Morrison
Second Skin
Caitlin Kittredge
Nocturne City (3)
The Hermit of Eyton Forest
Ellis Peters
Brother Cadfael (14)
The suspicions of Mr. Whicher: a shocking murder and the undoing ...
Kate Summerscale
Defend and Betray
Anne Perry
William Monk novels (3)
Cain His Brother
William Monk novels (6)
Weighed in the balance
William Monk novels (7)
Dark Assassin
William Monk novels (15)
Execution Dock
William Monk novels (16)
The Marx Sisters: A Kathy Kolla and David Brock Mystery
Barry Maitland
Brock And Kolla (1)
Street Magic
Black London (1)
The Bohemian Girl
Kenneth Cameron
The Denton series (2)