Juntingtower by John Buchan

Mr. John Heritage, solitary in the old Tower, found much to occupy his mind. His giddiness was passing, though the dregs of a headache remained, and his spirits rose with his responsibilities. At daybreak he breakfasted out of the Mearns Street provision box, and made tea in one of the Die-Hards' camp kettles. Next he gave some attention to his toilet, necessary after the rough-and-tumble of the night. He made shift to bathe in icy water from the Tower well, shaved, tidied up his clothes and found a clean shirt from his pack. He carefully brushed his hair, reminding himself that thus had the Spartans done before Thermopylae. The neat and somewhat pallid young man that emerged from these rites then ascended to the first floor to reconnoitre the landscape from the narrow unglazed windows.

If any one had told him a week ago that he would be in so strange a world he would have quarrelled violently with his informant. A week ago he was a cynical clear-sighted modern, a contemner of illusions, a swallower of formulas, a breaker of shams -- one who had seen through the heroical and found it silly. Romance and such-like toys were playthings for fatted middle-age, not for strenuous and cold-eyed youth. But the truth was that now he was altogether spellbound by these toys. To think that he was serving his lady was rapture -- ecstasy, that for her he was single-handed venturing all. He rejoiced to be alone with his private fancies. His one fear was that the part he had cast himself for should be needless, that the men from the sea should not come, or that reinforcements would arrive before he should be called upon. He hoped alone to make a stand against thousands. What the upshot might be he did not trouble to inquire. Of course the Princess would be saved, but first he must glut his appetite for the heroic.