The reasons for failure are not far to seek. In the first place, Rupert was too complete a soldier for the task he had undertaken. His common-sense, soldierly point of view quite failed to embrace the political and constitutional sides of the question. He could no more comprehend the King's refusal to make any compromise, than he could have understood the moderate Royalists' dread of a complete victory for their own side. The boyish challenge purporting to be sent by him to Essex, shows, if genuine, how absolutely he failed to grasp the points at issue. "My Lord," it begins, "I hear you are a general of an army.... I shall be ready, on His Majesty's behalf, to give you an encounter in a pitched field at Dunsmore Heath, 18th October next. Or, if you think it too much labour, or expense, to draw your forces thither, I shall be as willing, on my own part, to expect private satisfaction at your hands, and that performed by a single duel. Which proffer, if you please to accept, you shall not find me backward in performing what I have promised.... Now I have said all, and what more you expect of me to be said, shall be delivered in a larger field than a small sheet of paper, and that by my sword, and not by my pen. In the interim {68} I am your friend, till I meet you next."[33] The stories of his wandering in disguise through the quarters of the Parliament may be somewhat apocryphal, but they show, at least, the impression he made on his contemporaries. And there is nothing doubtful in the fact that he and Maurice laughed aloud in the face of the Parliamentary Commissioner who proclaimed them solemnly, "traitors, to die without mercy."[34] Rupert, notwithstanding his twenty-two years and his unusual experiences, was a boy still; far too young for the position he held. He was over-confident, and rash with the rashness of youth. Frequently his victorious charge was but the prelude to disaster; for the cavalry were apt to pursue too eagerly, leaving the foot unsupported on the field. Still, it should be remembered that it must have been next to impossible to hold back those gallant, untrained troops; though probably Rupert did not try very hard to do it.