Charles now sent word to King Frederick that he had made war only to require him to make peace, and he must agree to act justly towards the Duke of Holstein or the city of Copenhagen would be destroyed and his dominions laid waste with fire and sword. Frederick, utterly taken aback by the warlike vigor of King Charles, was very glad to accept this proposal and thus to escape from the dangerous position in which he had placed himself, and the negotiations were driven through by Charles with the same abrupt energy he had shown in his military movements. In less than six weeks from the beginning of the war it was ended and the treaty made, a surprising achievement for the first campaign of an eighteen-year-old warrior. The treaty was favorable to Frederick, Charles exacting nothing for himself, but demanding that the Duke of Holstein should be repaid the expenses of the war. The boy king had reason for haste, for the town of Riga, in his dominions, was being invested by a combined army of Russians, Poles, and Saxons. The treaty was no sooner signed than he sailed in all haste to its relief. It had made a gallant and nearly desperate defence under General Dahlberg, but the besiegers did not wait for the impact of Charles's army, hastily retreating and leaving the field open to him for a great feat of arms, the most famous one in his career. The town of Narva, in Ingermanland, was then invested by a great Russian army, sixty thousand--some say eighty thousand--strong, the Czar Peter being in supreme command, the Duc de Croy commanding under him. But the unskilled Russians had not proved very successful in the art of besieging, having failed for six weeks to take a city that was very poorly fortified and whose governor, Baron Herre, had but a thousand regular troops in his garrison. It was in mid-November, 1700, that the czar heard that the Swedish king had landed an army of about thirty-two thousand men, and was coming to the relief of Narva. Not content with his great force, Peter hurried forward a second army of thirty thousand men, proposing to enclose King Charles between these two hordes and hoping thus to annihilate him. He reckoned without his host. Charles landed at Pernow and made a forced march to Reval, followed by his cavalry, fourteen thousand strong, but with only four thousand foot soldiers. Marching, in his usual ardent manner, in the van of his army, he did not wait for the rear, making his way onward by nearly impassable roads and coming before the outposts of the supplementary Russian army with only eight thousand men. With apparently utter indifference to the vast disproportion in numbers, the Swedish firebrand rushed forward, the Russians, not dreaming of such mad temerity, being sure that he had his whole army behind him.