Brother Cadfael 02: One Corpse Too Many

apt to give to the poor as a kind of sop to God for luck, and the common bowmen and even the Flemings, when off-duty and merry, tossed Osbern a few coppers, or the scraps from their mess.
    He had his little wagon backed well into the lee of a clump of half-grown trees, close to the guard-post, where he might come in for a crust of bread or a drink, and could enjoy the glow of the field-fire at night. Even summer nights can strike chill after the heat of the August day, when you have only a few rags to cover you, and the fire was doubly welcome. They kept it partially turfed, to subdue the glow, but left themselves light enough to scrutinise any who came late.
    It was close to midnight when Osbern stirred out of an uneasy sleep, and straining his ears for the reason, caught the rustling of the bushes behind and to his left, towards the Castle Foregate but well aside from the open road. Someone was approaching from the direction of the t9wn, and certainly not from the main gates, but roundabout in cover from along the riverside. Osbern knew the town like his own callused palm. Either this was a scout returning from reconnaissance - but why keep up this stealth right into the camp? - or else someone had crept out of town or castle by the only other way through the wall on this side, the water-port that led down to the river.
    A dark figure, visible rather as movement than matter in a moonless night, slid out from the bushes and made at a crouching, silent scurry for the guard-post. At the sentry's challenge he halted immediately, and stood frozen but eager, and Osbern saw the faint outline of a slight, willowy body, wrapped closely in a black cloak, so that only a gleam of pale face showed. The voice that answered the challenge was young, high-pitched, tormentedly afraid and desperately urgent.
    'I beg audience - I am not armed! Take me to your officer. I have something to tell - to the king's advantage ...'
    They hauled him in and went over him roughly to ensure he bore no weapons; and whatever was said between them did not reach Osbern's ears, but the upshot of it was that he had his will. They led him within the camp, and there he vanished from view.
    Osbern did not doze again, the cold of the small hours was gnawing through his rags. Such a cloak as that, he thought, shivering, I wish the good God would send me! Yet even the owner of so fine a garment had been shaking, the quavering voice had betrayed his fear, but also his avid hope. A curious incident, but of no profit to a poor beggar. Not, that is, until he saw the same figure emerge from the shadowy alleys of the camp and halt once more at the gate. His step was lighter and longer now, his bearing less furtive and fearful. He bore some token from the authorities that was enough to let him out again as he had entered, unharmed and unmolested. Osbern heard a few words pass:
    'I am to go back, there must be no suspicion ... I have my orders!'
    Ah, now, in pure thankfulness for some alleviating merry, he might be disposed to give. Osbern wheeled himself forward hurriedly into the man's path, and extended a pleading hand.
    'For God's love, master! If he has been gracious to you, be gracious to the poor!'
    He caught a glimpse of a pale face much eased, heard long breaths of relief and hope. A flicker of firelight caught the elaborate shape of a metal clasp that fastened the cloak at the throat. Out of the muffling folds a hand emerged, and dropped a coin into the extended palm. 'Say some prayers for me tomorrow,' said a low, breathless whisper, and the stranger flitted away as he had come, and vanished into the trees before Osbern had done blessing him for his alms.
    Before dawn Osbern was roused again from fitful sleep, to withdraw himself hastily into the bushes out of all men's way. For it was still only the promise of a clear dawn, but the royal camp was astir, so quietly and in such practical order that he felt rather than heard the mustering of men, the ordering of ranks, the checking of weapons. The air of the morning seemed to shake to the tramping of regiments, while barely a sound could be heard. From curve to curve of Severn, across the neck of land that afforded the only dry approach to the town, the steady murmur of activity rippled, awesome and exhilarating, as King Stephen's army turned out and formed its divisions for the final assault of Shrewsbury castle.
    Chapter Two
    Long before noon it was all over, the gates fired with rushwood and battered