If Rikki-tikki had only known, he was doing a much more dangerous thing than fighting Nag, for Karait is so small, and can turn so quickly, that unless Rikki bit him close to the back of the head, he would get the return stroke in his eye or his lip.

But Rikki did not know. His eyes were all red, and he rocked back and forth, looking for a good place to hold. Karait struck out. Rikki jumped sideways and tried to run in, but the wicked little dusty gray head lashed within a fraction of his shoulder, and he had to jump over the body, and the head followed his heels close.

Teddy shouted to the house: “Oh, look here! Our mongoose is killing a snake.” And Rikki-tikki heard a scream from Teddy’s mother. His father ran out with a stick, but by the time he came up, Karait had