There was no answer from outside, so Rikki-tikki knew Nagaina had gone away. Nag coiled himself down, coil by coil, round the bulge at the bottom of the water jar, and Rikki-tikki stayed still as death. After an hour he began to move, muscle by muscle, toward the jar. Nag was asleep, and Rikki-tikki looked at his big back, wondering which would be the best place for a good hold. "If I don't break his back at the first jump," said Rikki, "he can still fight. And if he fights--O Rikki!" He looked at the thickness of the neck below the hood, but that was too much for him; and a bite near the tail would only make Nag savage.
"It must be the head"' he said at last; "the head above the hood. And, when I am once there, I must not let go."
Then he jumped. The head was lying a little clear of the water jar, under the curve of it; and, as his teeth met, Rikki braced his back against the bulge of the red earthenware to hold down the head. This gave him just one second's purchase, and he made the