ten o'clock
`` It was half-past eight when the servant saw the dark man run out of the yard ? '' `` Yes ! '' `` And at half-past eight Ferruci was at Hampstead in the house of Dr. Jorce ? '' `` Not that I know of , '' said Lucian , remembering that he had asked Jorce the question rather generally than particularly , `` but the doctor declared that Ferruci was with him at ten o'clock on that evening , and did not leave him until next morning ; so as your father was killed between eleven and twelve , Ferruci must be innocent . '' `` It would seem so , if this doctor is to be believed , '' muttered Diana reflectively , `` but judging by what you have told me , there is nothing to show that Ferruci was _ not _ in Pimlico at eight-thirty , and was _ not _ the man whom the servant saw . '' `` Well , certainly he could get from Pimlico to Hampstead in an hour and a half . However , the main point about all this evidence is , that neither Ferruci nor Lydia Vrain killed your father . ''