His mother made no arresting movement; not a muscle of her face stirred; but when the noise of his footsteps died away a hoarse sob heaved her breast and she fell into a swoon. "Open--in the name of the most holy Emperor Constantius!" It was the summons of soldiery sent by the prefect to hunt the Sabæan rebels, on the denunciation of the patrician mother of Juventinus. With a powerful lever the soldiers attempted to prise open the door of the _columbarium_, shaking the edifice on its foundations. The little silver urns vibrated plaintively under the blows. Half of the door gave way. Anatolius, Myrrha, and Arsinoë rushed into the inner gallery. The Christians hurried along the narrow passages like ants disturbed in their mound, making for all the secret outlets communicating with the quarry. But Arsinoë and Myrrha, unfamiliar with the exact situation of the galleries, lost their way in the labyrinth and at last reached the lowest floor of all at a depth of fifty cubits under ground. It became difficult to breathe; muddy water lay under foot. The flame of the lamps became dim and almost blew out. Putrid miasmas filled the air. Myrrha felt her head swim and gradually lost consciousness. Anatolius took her in his arms. At every step they feared to encounter the legionaries; all the outlets might be blocked and sealed up; they were running the risk of being buried alive. At last they heard the voice of Juventinus calling-- "Here! here!" Bent double, he was carrying the old Didimus on his back. At the end of a few minutes they reached a secret door opening on the Campagna. On returning to the house, Arsinoë quickly undressed Myrrha and put her to bed, still in a dead faint. Kneeling by her side the elder sister long kissed and chafed the thin, yellow, and inert hands. A pang of agonising presentiment shot through her heart. The face of the sleeper bore a strange expression. Never had it reflected so bodiless a charm. All the little body seemed transparent and frail as the sides of an alabaster jar illumined by an inner fire. XVIII Late one evening in a marshy wood not far from the Rhine, between the fortified post, _Tres Tabernæ_ and the Roman town of Argentoratum,[1] conquered a short time previously by the _Alemanni_, two soldiers who had lost their way were slouching along. One named Aragaris, an awkward and red-headed giant, a Sarmatian in the Roman service; the other Strombix, a lean and frowning little Syrian. [1] Strasburg. The spaces between the trunks of trees were densely dark. A fine rain was falling through warm air. The birches diffused an odour of damp leaves, and far off a cuckoo was calling. At every crack of the branches the startled Strombix began to quake and seized the fist of his companion. "Oh, cousin! cousin!"