The Basilica of Constantine no longer retained its pristine splendor, its pristine purity as in the days, ere the revival of paganism by the Emperor Julian the Apostate had put a sudden and impressive check upon the meretricious defilement of the glory, for which it was built.
The exterior began to show signs of decay. The interior, too, had changed with the inexorable trend of the times. The solemn recesses were filled with precious relics. Many hued tapers surrounded the glorious pillars, and eastern tapestries wreathed their fringes round the massive altars.
As Tristan entered the incense-saturated dusk of St. Peter's, the first part of the service had just been concluded. The last faint echoes from the voices in the choir still hovered upon the air, and the silent crowds of worshippers were still grouped in their listening attitudes and absorbed in their devotions.
The only light was bestowed by the evening sun, duskily illuminating the emblazoned windows, or by the glimmer of lamps in distant shrines, hung with sable velvet and attended each by its own group of ministering priests.
Struck with an indefinable awe Tristan looked about. At first he only realized the great space, the four long rows of closely set columns, and the great triumphal arch which framed the mosaics of the apse, where Constantine stood in the clouds offering his Basilica to the Saviour and St. Peter. Then he looked towards the sacred shrines above the Apostle's grave, where lamps burned incessantly and cast a dazzling halo above the high altar, reflected in the silver paving of the presbytery and on the golden gates and images of the Confessio. Immediately behind the altar was revealed a long panel of gold, studded with gems and ornaments, with figures of Christ and the Apostles, a native offering from the Emperor Valentinian III. The high altar and its brilliant surroundings were seen from the nave between a double row of twisted marble columns, white as snow. A beam covered with plates of silver united them and supported great silver images of the Saviour, the Virgin and the Apostles with lilies and candelabra.
To their shrines, to do homage, had in time come the Kings from all the earth: Oswy, King of the Northumbrians, Cædwalla, King of the West Saxons, Coenred, King of the Mercians, and with him his son Sigher, King of the East Saxons. Even Macbeth is said to have made the pilgrimage. Ethelwulf came in the middle of the ninth century, and with him came his son Alfred. In the arcades beneath the columned vestibule of the Basilica, tomb succeeded tomb. Here the popes were buried, Leo I, the Great, being first in line, the Saxon Pilgrim Kings, the Emperors Honorius III and Theodosius II, regarding whom St. John Chrysostomus has written: "Emperors were proud to stand in the hall keeping guard at the fisherman's door."
During the interval between the divisions of the service, Tristan, like many of those present, found his interest directed towards the relics, which were inclosed in a silver cabinet with crystal doors and placed above the high altar. Although it was impossible to obtain a satisfactory view of these ecclesiastical treasures, they nevertheless occupied his attention till it was diverted by the appearance of a monk in the habit of the Benedictines, who had mounted the richly carved pulpit fixed between two pillars.
As far as Tristan was enabled to follow the trend of the sermon it teemed with allusions to the state of society and religion as it prevailed throughout the Christian world, and especially in the city of the Pontiff. By degrees the monk's eloquence took on darker and more terrible tints, as he seemed slowly to pass from generalities to personal allusions, which increased the fear and mortification of the great assembly with every moment.
From the shadows of the shrine, where he had chosen his station, Tristan was enabled to mark every shade of the emotions which swayed the multitudes and, as his eyes roamed inadvertently towards the chapel of the Father Confessor, he saw a continuous stream of penitents enter the dark passage leading towards the crypts, many of whom were masked.
Turning his head by chance, Tristan's glance fell upon two men who had apparently just entered the Basilica and paused a few paces away, to listen to the words which the monk hurled like thunderbolts across the heads of his listeners. Despite their precaution to wear masks, Tristan recognized the Grand Chamberlain in the one, while his companion, the hunchback, appeared rather uncomfortable in the sanctified air of the Basilica.