But suddenly he started: two carabiniers had just appeared among the ruins. The spot was not safe; the authorities watched over tourists even in broad daylight. And later on came another meeting which caused him some emotion. He perceived an ecclesiastic, a tall old man, in a black cassock, edged and girt with red; and was surprised to recognise Cardinal Boccanera, who had quitted the roadway, and was slowly strolling along the band of grass, among the tall thistles and sulphur-wort. With his head lowered and his feet brushing against the fragments of the tombs, the Cardinal did not even see Pierre. The young priest courteously turned aside, surprised to find him so far from home and alone. Then, on perceiving a heavy coach, drawn by two black horses, behind a building, he understood matters. A footman in black livery was waiting motionless beside the carriage, and the coachman had not quitted his box. And Pierre remembered that the Cardinals were not expected to walk in Rome, so that they were compelled to drive into the country when they desired to take exercise. But what haughty sadness, what solitary and, so to say, ostracised grandeur there was about that tall, thoughtful old man, thus forced to seek the desert, and wander among the tombs, in order to breathe a little of the evening air! Pierre had lingered there for long hours; the twilight was coming on, and once again he witnessed a lovely sunset. On his left the Campagna became blurred, and assumed a slaty hue, against which the yellowish arcades of the aqueduct showed very plainly, while the Alban hills, far away, faded into pink. Then, on the right, towards the sea, the planet sank among a number of cloudlets, figuring an archipelago of gold in an ocean of dying embers. And excepting the sapphire sky, studded with rubies, above the endless line of the Campagna, which was likewise changed into a sparkling lake, the dull green of the herbage turning to a liquid emerald tint, there was nothing to be seen, neither a hillock nor a flock--nothing, indeed, but Cardinal Boccanera's black figure, erect among the tombs, and looking, as it were, enlarged as it stood out against the last purple flush of the sunset.