One evening, therefore, Cornwallis gleefully told one of his officers that they would "bag the old fox" on the next day. The officer suggested that it might be better not to postpone it till the morrow; but Cornwallis answered that this time the Americans could not escape. That same night, however, Washington took advantage of the fact that the roads froze hard enough to enable him to remove his cannon, and slipped away by back roads, leaving his camp fires burning brightly so as to deceive the enemy. When the British awoke the next morning, the "old fox" was gone, and sounds of firing in the direction of Prince´ton soon convinced them that a battle must be going on there. Running into Cornwallis's tent, an officer roused him, crying: "To arms, general! Washington has outgeneraled us. Let us fly to the rescue of Princeton!" But, notwithstanding all their haste, they reached Princeton only after the battle--on the present college grounds--was all over, and the victorious Washington had safely advanced to Mor´ris-town Heights. This campaign, in the dead of winter, was so wonderful that it won for Washington the title of "Savior of his Country," and Frederick the Great of Prussia once said that it was the most brilliant piece of generalship in the pages of history. LXIX. THE FIGHT AT BENNINGTON. While Washington was spending the rest of the winter at Morristown, the news of his triumphs reached France. Franklin had been sent there, in 1776, to secure help, if possible. His reputation as a man of science, his great talents, and his affable manners made him a great favorite in Paris, where the fashionable ladies and gentlemen carried fans and snuffboxes decorated with his portrait. But although both king and queen received Franklin very graciously, they would not at first promise him any aid. A young French nobleman named La-fā-yette´, longing to help the Americans, now decided to leave his young wife and home. But as the king forbade him to leave court, he secretly embarked upon a vessel he fitted out himself, and crossed the Atlantic. Then, as soon as he landed, he went straight to Congress and offered to serve the United States without pay. A few days later he met Washington, whose helper he became, and who soon learned to love him as dearly as if he had been his own son. [Illustration: Washington and Lafayette.] Several other illustrious foreigners came in the same way to fight for America and freedom. The bravest among them were the Germans De Kalb´ and Steu´ben, and the Poles Pu-las´kĭ and Kos-ci-us´ko. It is said that when Kosciusko first presented himself, and was asked what he could do, he briefly answered: "Try me." This reply so pleased Washington that he made the young man his aid-de-camp.