But the Scots made an attack on England. Henry Percy went north to fight with them, and beat them in a great battle, making many prisoners. The King sent to ask to have the prisoners sent to London, and this made the proud Percy so angry that he gave up the cause of King Henry, and went off to Wales, taking his prisoners with him; and there—being by this time nearly sure that poor Richard must be dead —he joined the Welsh in choosing, as the only right king of England, young Edmund Mortimer. Henry IV. and his sons gathered an army easily —for the Welsh were so savage and cruel, that the English were sure to fight against them if they broke into England. The battle was fought near Shrewsbury. It was a very fierce one, and in it Hotspur was killed, the Welsh put to flight, and the Prince of Wales fought so well that everyone saw he was likely to be a brave, warlike king, like Edward I. or Edward III.
The troubles were not over, however, for the Earl of Northumberland himself, and Archbishop Scrope of York, took up arms against the king; but they were put down without a battle. The Earl fled and hid himself, but the archbishop was taken and beheaded—the first bishop whom a king of England had ever put to death. The Welsh went on plundering and doing harm, and Prince Henry had to be constantly on the watch against them; and, in fact, there never was a reign so full of plots and conspiracies. The king never knew whom to trust: one friend after another turned against him, and he became soured and wretched: he was worn out with disappointment and guarding against everyone, and at last he grew even suspicious of his brave son Henry, because he was so bright and bold, and was so much loved. The prince was ordered home from Wales, and obliged to live at Windsor, with nothing to do, while his youngest brothers were put before him and trusted by their father—one of them even sent to command the army in France. But happily the four brothers—Henry, Thomas, John and Humfrey—all loved each other so well that nothing could make them jealous or at enmity with one another. At Windsor, too, the king kept young Edmund Mortimer—whom the Welsh had tried to make king,— and also the young English princes, and they all led a happy life together.