The twilight came swiftly. The bars of gold and light vibrated over the tawny waters, and darkness fell like a black sword, cutting the day from the night. The voices of the birds from the tree-tops, here and there died down, and as if to enhance the silence, insect voices came from under the grass. I got on my elephant's back and sat there quietly, for as the evening Silence goes by, each man must make his prayer. As the Silence walked on, I could see the grass waving in zig-zag curves across the river. It was always making half the figure eight in the undergrowth of the jungle. Gradually all grew still and then over the river came the terrible hunger wail of a tiger. That instant its tawny face scarred with black emerged from behind green leaves. He saw I was across the river. The tiger's body is marked with the same stripes and curves as he makes in the grass when he walks, and people in the jungle can always tell by the wave of the grass which animal has passed that way. Throughout the country-side, wherever the echo of the wail was heard, a tension fell upon everything. Even the saplings were tense, and you could almost hear the cracking of the muscles of the animals holding themselves together and watching which way the tiger would pass. It was as if the horn of the chase had sounded and blown; each one had to take to cover. Night came on apace. I wanted to tie Kari to a big tree, but he refused to be tied up that night. He paced up and down the shore without making the slightest noise. Then he would suddenly stand still and stop the waving of his ears in order to listen very intently to shadows of songs that might be passing. I stayed on his back, intent on knowing what he was going to do. Soon, very soon, the river became silver-yellow and over the jungle a quickening silence throbbed from leaf to leaf. Then swiftly the terrible face of the moon was upon us. Kari snorted and stepped backwards. I, too, was surprised because this was another moon, very rarely seen by men. It was the moon bringing the call of the summer to the jungle. It was the call for hunt and challenge, when elephants kill elephants to win their mates. And under the moon lay a great sinister figure like the terrible face of a dragon. The July cloud was hovering in the distance, and between the cloud-banks and the moon I saw strange things, as if throngs of white animals were going from sky to sky--I don't know why--no one ever knows. These are the spirits of the jungle, the dead ancestors of the animals now living. Without warning, Kari now plunged into the river. I spoke to him, scratched his neck with the _ankus_, but he would not stop. He forded the river, at times almost drowning, and charged madly up the other shore, where we were lost in the darkness of leaves and vines. No moonlight fell on us, not even the knowledge that the moon was up could be vouched for in this thick black place. CHAPTER VI KARI'S STORY