instant. Dragging back with all his strength, he forced his clamped teeth deeper and deeper into the twisting spine. At last through the cold, bubbling blood, he felt the fibres of the vertebræ slowly give, until with a final rending tug he bit clear through the spinal cord.
By this time he was well below ground, and only the snake's tail thrashed and writhed ineffectually on the surface. Suddenly, as Chippy still gnawed and tugged, the lashings of the tail lessened, and through his clenched teeth he could feel something tugging and biting at it. Little by little the struggles of the snake became fainter, and Chippy no longer felt himself dragged forward. When at last they had died down to convulsive twists and shudders, which would last for hours, the battling chipmunk unlocked his jaws and backed out of the burrow. Bloody, bruised and exhausted he found himself once more safe in the sunlight.
Bight in front of him was Nippy, worrying the wriggling tail with her sharp teeth like a little terrier. Aroused far underground by the sounds of the struggle she had rushed up toward the entrance. While still a long distance from it, her quick little ears caught the fierce hiss that the great snake gave at the first pang from the piercing teeth; and though this was her first year alone in the world, she knew that the sound meant death. Turning like a flash, she slipped into a by-passage and escaped to the upper air by an emergency exit concealed under a huckleberry bush. At her front door she found the
