Edgar Wallace,
The Angel of Terror — Chapter XXXVII
(1922)
“ Will you go downstairs and wait until I come?""You'll not attempt to leave this house?" he said, and she laughed."Really, you're going on like one of those infallible detectives one reads about in the popular magazines," she said a little contemptuously. "You have no authority whatever to keep me from leaving this house and nobody knows that better than you. But you needn't be afraid. Sit on the stairs if you like until I come down." ”
