A friend of mine, a police officer, who was engaged in trying to catch the last of the robber chiefs who hid near Popa, told me that when he went up the mountain shooting he, too, had to make offerings. Some way up there is a little valley dark with overhanging trees, and a stream flows slowly along it. It is an enchanted valley, and if you look closely you will see that the stream is not as other streams, for it flows uphill. It comes rushing into the valley with a great display of foam and froth, and it leaves in a similar way, tearing down the rocks, and behaving like any other boisterous hill rivulet; but in the valley itself it lies under a spell. It is slow and dark, and has a surface like a mirror, and it flows uphill. There is no doubt about it; anyone can see it. When they came here, my friend tells me, they made a halt, and the Burmese hunters with him unpacked his breakfast. He did not want to eat then, he said, but they explained that it was not for him, but for the Nats. All his food was unpacked, cold chicken and tinned meats, and jam and eggs and bread, and it was spread neatly on a cloth under a tree. Then the hunters called upon the Nats to come and take anything they desired, while my friend wondered what he should do if the Nats took all his food and left him with nothing. But no Nats came, although the Burmans called again and again. So they packed up the food, saying that now the Nats would be pleased at the courtesy shown to them, and that my friend would have good sport. Presently they went on, leaving, however, an egg or two and a little salt, in case the Nats might be hungry later, and true enough it was that they did have good luck. At other times, my friend says, when he did not observe this ceremony, he saw nothing to shoot at all, but on this day he did well. The former history of all Nats is not known. Whether they have had a previous existence in another form, and if so, what, is a secret that they usually keep carefully to themselves, but the history of the Popa Nats is well known. Everyone who lives near the great hill can tell you that, for it all happened not so long ago. How long exactly no one can say, but not so long that the details of the story have become at all clouded by the mists of time.