General MacKay was as wet, cold, and furious as a cat in a rain-barrel. He had led the failed attacks personally. As the afternoon turned into evening he had worked his way north up the line. It was plain that the center could not be forced, and he had no real choice but to probe that part of the bog around the piles of the causeway. For the fourth attack, therefore, he got permission from Ginkel to lead the Black Torrent Guards—who had done nothing so far—on a thrust parallel to and just a bit south of the road.