John Dickson Carr, The Haverfordian (1929)
“ But outside; the train is waiting there by its platform, and, as usual, it is a high platform above the tracks, so that one passing by the train finds the train windows on a level with his breast. Inside one compartment, near the window which is half-way down, sits Mercier, opening the wallet which contains his winnings. You see him. You are a tall man—your hands through the open window in an instant, there in the darkness of the platform. Mercier sees only two hands which flash in at his throat. He is still gripping the wallet when the life has gone out of him. ”
