midnight
`` Hear me through , until you discredit my story . '' Then , just as I have already written down the strange incidents in the foregoing chapters , I related to him everything that had occurred since the last evening he sat smoking with me in Harley Place . He heard me in silence , the movements of his face at one moment betraying satisfaction , and at the next bewilderment . Once or twice he grunted , as though dissatisfied , until I came to the midnight incident beside the river , and explained how I had watched and what I had witnessed . `` What ? '' he cried , starting in sudden astonishment . `` You actually saw him ?