They do it with mirrors
Agatha Christie
Miss Marple (6)
The Last Honest Woman
Nora Roberts
The O'Hurleys! (1)
Touch of Darkness
C. T. Adams & Cathy Clamp
Thrall Series (3)
Tinkers
Paul Harding
The Lady Elizabeth
Alison Weir
The White Queen
Philippa Gregory
The Cousins' War (1)