James P. Smythe, Rescuing the Czar, Part One — Chapter IX (1920)
“ We could hear the measured tread of a squad overhead tramping away until the thump, thump, thumping sank into a faint indistinct vibration which was caught up by the beating of our hearts and the throbbing of our fascinated and incredulous ears.... 'Well!' ejaculated my amused 'prisoner' ”
