But it was not so. Kooskra struck at thin air. At the last moment the black bird had slipped aside and taken cover in one of the high-set windows of the tower.
And now it was certain beyond doubt that something was wrong with Kooskra. He sought to beat about the embrasure sheltering his quarry, but lost height. Abruptly he turned and flew out from the wall. His wings moved in an irregular and convulsive way. Fafhrd's fingers tightened apprehensively on the Mouser's shoulder.
As Kooskra reached a point above them, he gave a great wild scream that shook the soft Lankhmar night. Then he fell, like a dead leaf, circling and spinning. Only once again did he seem to make an effort to command his wings, and then to no avail.
He landed heavily a short distance from them. When Fafhrd reached the spot, Kooskra was dead.
The barbarian knelt there, absently smoothing the feathers, staring up at the tower. Puzzlement, anger, and some sorrow lined his face.
“Fly north, old bird,” he murmured in a deep, small voice. “Fly into nothingness, Kooskra.” Then he spoke to the Mouser. “I find no wounds. Nothing touched him on this flight, I'll swear.”
“It happened when he brought down the other,” said the Mouser soberly. “You did not look at the talons of that ugly fowl. They were smeared with a greenish stuff. Through some small gouge it entered him. Death was in him while he sat on your wrist, and it worked faster when he flew at the black bird.”
Fafhrd nodded, still staring at the tower. “We've lost a fortune and a faithful killer, tonight. But the night's not done. I have a curiosity about these death-dealing shadows.”
“What are you thinking?” asked the Mouser.
“That a man might easily hurl a grapnel and a line over a corner of that tower, and that I have such a line wound around my waist. We used it to mount Muulsh's roof, and I shall use it again. Don't waste your words, little man. Muulsh? What have we to fear from him? He saw a bird take the jewel. Why should he send guards to search the roofs?
“Yes, I know the bird will fly away when I go after him. But he may drop the jewel, or you may get in a lucky cast with your sling. Besides, I have a special notion about these matters. Poison claws? I'll wear my gloves and cloak, and carry a naked dagger. Come on, little man. We'll not argue. That corner away from Muulsh's and the river should do the trick. The one where the tiny broken spire rises. We come, oh tower!” And he shook his fist.
The Mouser hummed a fragment of song under his breath and kept glancing around apprehensively, as he steadied the line by which Fafhrd was mounting the wall of the tower-temple. He felt decidedly ill at ease, what with Fafhrd on a fool's errand, and the night's luck probably run out, and the ancient temple silent and desolate.
It was forbidden on pain of death to enter such places, and no man knew what evil things might lurk there, fattening on loneliness. Besides all that, the moonlight was too revealing; he winced at the thought of what excellent targets he and Fafhrd made against the wall.
In his ears droned the low but mighty clamor of the waters of the Hlal, which swished and eddied past the base of the opposite wall. Once it seemed to him that the temple itself vibrated as though the Hlal were gnawing at its vitals.
Before his feet yawned the dark, six-foot chasm separating the warehouse from the temple. It allowed a sidewise glimpse of the walled temple-garden, overgrown with pale weeds and clogged with decay.
And now as he glanced in that direction he saw something that made him raise his eyebrows and sent a shiver crawling over his scalp. For across the moonlit space stole a manlike but unwholesomely bulky figure.
The Mouser's impression was that the strange body lacked the characteristic human curves and taperings of limb, that its face lacked features, that it was unpleasantly froglike. It seemed to be colored a uniform dull brown.
It vanished in the direction of the temple. What was it, the Mouser could not for the moment conjecture.
Intent on warning Fafhrd, he looked up, but the barbarian was already swinging into the embrasure at a dizzy height above. Disliking to shout, he paused undecided, half of a mind to skin up the line and join his comrade. All the while he kept humming a fragment of song — one used by thieves and supposed to enforce slumber on the inmates of a house being robbed. He wished fervently that the moon would get under a cloud.
Then, as if his fear had fathered a reality, something roughly grazed his ear and hit with a deadened thump against the temple wall. He knew what that meant — a ball of wet clay projected by a sling.
As he let his body collapse, two similar missiles followed the first. Close range, he could tell from the impact, and designed to kill rather than stun. He scanned the moonlit roof, but could see nothing. Before his knees touched the roof he had decided what he must do if he were to help Fafhrd at all. There was one quick way of retreat and he took it.
He grasped the long slack of the rope and dove into the chasm between the buildings, as three more balls of clay flattened against the wall.
As Fafhrd warily swung into the embrasure and found solid footing, he realized what had been bothering him about the character of the weatherworn carvings on the ancient wall: in one way or another they all seemed to be concerned with birds — raptorial birds in particular — and with human beings having grotesque avian features: beaked heads, batlike wings, and taloned limbs.
There was a whole border of such creatures around the embrasure, and the projecting stone ornament over which the grapnel was caught represented the head of a hawk. This unpleasant coincidence loosened the stout gates of fear within him and a faint sense of awe and horror trickled into his mind, extinguishing a part of his anger at Kooskra's repellent death. But at the same time it served to confirm certain vague notions that had come to him earlier.
He looked around. The black bird seemed to have retreated into the interior of the tower, where tenuous moonlight revealed an obscurely littered stone floor and a door half open on a rectangle of blackness. Whipping out a long knife, he trod softly inward, shifting his weight slowly from one foot to the other to feel for possible weaknesses in the centuries-old masonry.
It grew darker and then a little lighter, as his straining eyes accustomed themselves to the dimness. The stone beneath his feet became slippery. And in stronger and stronger waves there was borne to his nostrils the pungent, musty smell of a mews.
There was an intermittent soft rustling, too. He told himself it was only natural that birds of some sort — perhaps pigeons — should nest in this deserted structure, but a darker train of reasoning insisted that his previous speculations were right.
He passed a projecting panel of stone and came into the chief upper chamber of the tower.
Moonlight striking through two gaps in the ceiling high above vaguely revealed alcoved walls, which widened away from him toward the left. The sound of the Hlal was muted and deepened here, as though it rose up more through the stones than through the air. He was very close, now, to the half-open door.
He noted a tiny grilled opening in it, like that of a cell. Rising against the wall at the broad end of the room was what seemed to be an altar of some sort, embellished by indistinct sculptures. And on either side of it, in regular terraces like those of the altar itself, were tier on tier of small black blots.
Then he heard a raucous, falsetto cry, “Man! Man! Kill! Kill!” and saw a portion of the black blots launch themselves from the tiers, expanding in size as they spread their wings and converged upon him.
And largely because his fear had been expecting this, he jerked up his cloak to protect his naked head and whirled his knife at them in sweeping strokes. This close he could see them better: inky-feathered, cruelly taloned birds, each a brother to the two Kooskra had fought, squawking, squawking, striking at him like fighting-cocks able to fly.
At first he thought he could readily beat them off, but it was like fighting an eddying storm of shadows. Perhaps he struck two or three. He could not tell. And it made no difference. He felt talons grasp and prick his left wrist.
Then, because it seemed the only thing to do, he leaped through the half-open door, slammed it behind him, knifed off the bird that clung like death to his wrist, found the pricks by touch, nicked them with his knife, and sucked the poison that might have been on the talons.
His shoulder pressed against the door, he listened to their baffled flapping and angry croaking. From here escape would be difficult; this inner room was indeed nothing but a cell, lightless save for the trace of moonlight that filtered through the grilled hole in the door. He could conjecture no ready way of regaining the embrasure and