Late in the month of April, in the year 1521, an open wagon containing two persons was driven along one of the roads of Germany, the horse being kept at his best pace, while now and then one of the occupants looked back as if in apprehension. This was the man who held the reins. The other, a short but presentable person, with pale, drawn face, lit by keen eyes, seemed too deeply buried in thought to be heedful of surrounding affairs. When he did lift his eyes they were directed ahead, where the road was seen to enter the great Thuringian forest. Dressed in clerical garb, the peasants who passed probably regarded him as a monk on some errand of mercy. The truth was that he was a fugitive, fleeing for his life, for he was a man condemned, who might at any moment be waylaid and seized. On entering the forest the wagon was driven on until a shaded and lonely dell was reached, seemingly a fitting place for deeds of violence. Suddenly from the forest glades rode forth four armed and masked men, who stopped the wagon, sternly bade the traveller to descend and mount a spare horse they had with them, and rode off with him, a seeming captive, through the thick woodland. As if in fear of pursuit, the captors kept at a brisk pace, not drawing rein until the walls of a large and strong castle loomed up near the forest border. The gates flew open and the drawbridge fell at their demand, and the small cavalcade rode into the powerful stronghold, the entrance to which was immediately closed behind them. It was the castle of Wartburg, near Eisenach, Saxony, within whose strong walls the man thus mysteriously carried off was to remain hidden from the world for the greater part of the year that followed. The monk-like captive was just then the most talked of man in Germany. His seemingly violent capture had been made by his friends, not by his foes, its purpose being to protect him from his enemies, who were many and threatening. Of this he was well aware, and welcomed the castle as a place of refuge. He was, in fact, the celebrated Martin Luther, who had just set in train a religious revolution of broad aspect in Germany, and though for the time under the protection of a safe-conduct from the emperor Charles V., had been deemed in imminent danger of falling into an ambush of his foes instead of one of his friends.