twenty-two o'clock
Griggs asked at what time she might be expected to return . The porter put on a vague look and said that it was impossible to tell . Sometimes she went to Saint Peter 's on Sunday afternoon , to hear Vespers . Vespers began at twenty-two o'clock , or half-past twenty-two -- between half-past three and four by French time , at that season of the year . Griggs turned away , and wandered about for half an hour in the vicinity of the palace , uncertain as to what he should do , and yet determined not to lose sight of the necessity for immediate action of some sort . At last he went back to the Piazza di Spagna , intending to write a word of warning to Lord Redin , though he knew that the latter would pay very little attention to anything of such a nature . Like most foreigners , he would laugh at the idea of being attacked in the streets .