They tired of fighting at last and made it up. Sweden paid Denmark a million daler; for the rest, things stayed as they had been before. King Christian had shown himself no mean fighter, but the senseless sacking and burning of town and country that was an ugly part of those days’ warfare went against his grain, and he tried to persuade the Swedes to agree to leave that out in future. Gustav Adolf had not yet grown into the man he afterward became. “As to the burning,” was his reply, “seeing that it is the usage of war, and we enemies, why we will each have to do the best we can,” which meant the worst. Had the two kings, who had much in common, got together in the years of peace that followed, much misery might have been saved Denmark, and a black page of history might read very differently. For those were the days of the Thirty Years’ War, in which together they might have dictated peace to harassed Europe. Now King Christian’s ambition, his piety, for he was a sincerely religious man, as well as his jealousy of his younger rival and of the growing power of Sweden—so mixed are human motives—made him yield to the entreaties of the hard-pressed Protestant princes to take up alone their cause against the German Emperor. He had tried for half a dozen years to make peace between them. At last he drew the sword and went down to force it. After a year of fighting Tilly and Wallenstein, the Emperor’s great generals, he met the former in a decisive battle at Lutter-am-Baremberg. King Christian’s army was beaten and put to rout. He himself fled bareheaded through the forests of the Hartz Mountains, pursued by the enemy’s horsemen. It was hardly necessary for the Emperor to make him promise as the price of peace to keep out of German affairs thenceforth. His allies had left him to fight it out alone. All their fine speeches went for nothing when it came to the test, and King Christian rode back to Denmark, a sadder and wiser man. It was left to Gustav Adolf, after all, to teach the German generals the lesson they needed.