But we must not linger. Our traveller, as we said, had entered India by way of Kabul. Shortly before he arrived at Pou-lou-cha-pou-lo, i. e. the Sanskrit Purushapura, the modern Peshawer, Hiouen-thsang heard of an extraordinary cave, where Buddha had formerly converted a dragon, and had promised his new pupil to leave him his shadow, in order that, whenever the evil passions of his dragon-nature should revive, the aspect of his master's shadowy features might remind him of his former vows. This promise was fulfilled, and the dragon-cave became a famous place of pilgrimage. Our traveller was told that the roads leading to the cave were extremely dangerous, and infested by robbers--that for three years none of the pilgrims had ever returned from the cave. But he replied, 'It would be difficult during a hundred thousand Kalpas to meet one single time with the true shadow of Buddha; how could I, having come so near, pass on without going to adore it?' He left his companions behind, and after asking in vain for a guide, he met at last with a boy who showed him to a farm belonging to a convent. Here he found an old man who undertook to act as his guide. They had hardly proceeded a few miles when they were attacked by five robbers. The monk took off his cap and displayed his ecclesiastical robes. 'Master,' said one of the robbers, 'where are you going?' Hiouen-thsang replied, 'I desire to adore the shadow of Buddha.' 'Master,' said the robber, 'have you not heard that these roads are full of bandits?' 'Robbers are men,' Hiouen-thsang exclaimed, 'and at present, when I am going to adore the shadow of Buddha, even though the roads were full of wild beasts, I should walk on without fear. Surely, then, I ought not to fear you, as you are men whose heart is possessed of pity.' The robbers were moved by these words, and opened their hearts to the true faith. After this little incident, Hiouen-thsang proceeded with his guide. He passed a stream rushing down between two precipitous walls of rock. In the rock itself there was a door which opened. All was dark. But Hiouen-thsang entered, advanced towards the east, then moved fifty steps backwards, and began his devotions. He made one hundred salutations, but he saw nothing. He reproached himself bitterly with his former sins, he cried, and abandoned himself to utter despair, because the shadow of Buddha would not appear before him. At last, after many prayers and invocations, he saw on the eastern wall a dim light, of the size of a saucepan, such as the Buddhist monks carry in their hands. But it disappeared. He continued praying full of joy and pain, and again he saw a light, which vanished like lightning. Then he vowed, full of devotion and love, that he would never leave the place till he had seen the shadow of the 'Venerable of the age.' After two hundred prayers, the cave was suddenly bathed in light, and the shadow of Buddha, of a brilliant white colour, rose majestically on the wall, as