"They could no longer endure to fly in the dense column, they no longer obeyed the voice of their captain. They fell in love, and each marrying set about to build a nest, free and unmolested in those trees that Choo Hoo had promised them. Choo Hoo himself retired with his lovely bride to the ancestral ash, and passed the summer in happy dalliance. With the autumn the campaign recommenced, and with exactly the same result. After a second autumn and winter of fighting, Choo Hoo had pushed his frontier another fifteen miles farther into Kapchack's kingdom. Another summer of love followed, and so it went on year after year, Choo Hoo's forces meantime continually increasing in numbers, since there were now no restrictions as to nest trees, but one and all could marry.

"Till at last he has under his sway a horde of trained warriors, whose numbers defy calculation, and he has year by year pushed into Kapchack's territory till now it seems as if he must utterly overwhelm and destroy that monarch. This he would doubtless have achieved ere now, but there is one difficulty which has considerably impeded his advance, as he came farther and farther from his native province. This difficulty is water.

"For in the winter, when the Long Pond is frozen, and the brook nearly covered with ice, and all the ponds and ditches likewise, so vast a horde cannot find enough to satisfy their thirst, and must consequently disperse. Were it not for this Choo Hoo must ere now have overwhelmed us. As it is, Kapchack shivers in his claws, and we all dread the approaching autumn, for Choo Hoo has now approached so near as to be at our very doors. If he only knew one thing he would have no difficulty in remaining here and utterly destroying us."

"What is that?" said Bevis.

"Will you promise faithfully not to tell any one?" said the squirrel, "for my own existence depends upon this horde of barbarians being kept at bay; for, you see, should they pass over they will devour everything in the land, and there will certainly be a famine—the most dreadful that has ever been seen."

"I will promise," said Bevis. "I promise you faithfully."

"Then I will tell you," went on the squirrel. "In this copse of mine there is a spring of the clearest and sweetest water (you shall see it, I will take you to it some day) which is a great secret, for it is so hidden by ferns and fir-trees overhanging it, that no one knows anything about it, except Kapchack, myself, the weasel, and the fox; I wish the weasel did not know, for he is so gluttonous for blood, which makes him thirsty, that he is continually dipping his murderous snout into the delicious water.

"Now this spring, being so warm in the fern, and coming out of ground which is, in a manner, warm too, of all the springs in this province does not freeze, but always runs clear all the winter. If Choo Hoo only knew it, don't you see, he could stay in Kapchack's country, no matter how hard the frost, and his enormous army, whose main object is plunder, would soon starve us altogether. But he does not know of it.

"He has sent several of his spies, the wood-cocks, to search the country for such a spring, but although they are the most cunning of birds at that trick, they have not yet succeeded in finding my spring and thrusting their long bills into it. They dare not come openly, but fly by night, for Kapchack's hawks are always hovering about; well enough he knows the importance of this secret, and they would pay for their temerity with their lives if they were seen. All I am afraid of is lest the weasel or the fox, in their eagerness for empire, should betray the secret to Choo Hoo.

"The fox, though full of duplicity, and not to be depended upon, is at least brave and bold, and so far as I can judge his character would not, for his own sake (hoping some day to regain the kingdom), let out this secret. But of the weasel I am not so sure; he is so very wicked, and so cunning, no one can tell what he may do. Thus it is that in the highest of my beech trees I do not feel secure, but am in continual fear lest a wood-cock should steal in, or the weasel play the traitor, for if so a famine is imminent, and that is why I support, so far as I can without meddling with politics, the throne of Kapchack, as the last barrier against this terrible fate.