Two o'clock
If they need any help , you 'll hear from them shortly . I expect they wo n't let any grass grow under their feet on this case . '' When once more they stood on the sidewalk , Jack 's gaze lifted to the clock in the tower of St. Paul 's . Two o'clock . `` Well , we have n't gotten very far with our adventure , '' he said , a bit dispiritedly . `` I thought we would start something that would give us a bit of excitement . But , apparently , all we have done has been to let the whole business slip out of our hands . ''