"Closest thing I know," said Random, "is a heraldic beast-the griffin. Only this one is bald and purple."

"Definitely not our national bird," I added, drawing Grayswandir and swinging its point into line with the creature's head.

The beast darted a red, forked tongue. It raised its wings a few inches, then let them fall. When its head swung to the right its tail moved to the left, then left and right, right and left-producing a near-hypnotic, flowing effect as it advanced.

It seemed more concerned with the horses than with us, however, for its course was directed well past us toward the spot where our mounts stood quivering and stamping. I moved to interpose myself. At that point, it reared.

Its wings went up and out, spreading like a pair of slack sails suddenly caught by a gust of wind. It was back on its hind legs and towering above us, seeming to occupy at least four times the space it had previously. And then it shrieked, a god-awful, hunting scream or challenge that left my ears ringing. With that, it snapped those wings downward and sprang, becoming temporarily airborne.

The horses bolted and ran. The beast was beyond our reach. It was only then that I realized what the bright flash and the tinkling had represented. The thing was tethered, by means of a long chain running back into the cave. The exact length of its leash was immediately a question of more than academic interest.

I turned as it passed, hissing, flapping, and falling, beyond us. It had not possessed sufficient momentum to obtain true flight in that brief rush upward. I saw that Star and Firedrake were retreating toward the far end of the oval. Random's mount lago, on the other hand, had bolted in the direction of the Pattern.

The beast touched ground again, turned, as if to pursue Iago, appeared to study us once more, and froze. It was much nearer this time-under four meters-and it cocked its head, showing us its right eye, then opened its beak and made a soft cawing noise.

"What say we rush it now?" said Random.

"No. Wait. There is something peculiar about its behavior."

It had dropped its head while I was speaking, spreading its wings downward. It struck the ground three times with its beak and looked up again. Then it drew its wings part way back toward its body. Its tail twitched once, then swing more vigorously from side to side. It opened its beak and repeated the cawing sound.

At that moment we were distracted.

Iago had entered the Pattern, well to the side of the darkened area. Five or six meters into it, standing obliquely across the lines of power, he was caught near one of the Veil points like an insect on a piece of flypaper. He cried loudly as the sparks came up about him and his mane rose and stood erect.

Immediately, the sky began to darken directly overhead. But it was no cloud of water vapor which had begun to coalesce. Rather, it was a perfectly circular formation which had appeared, red at the center, yellow nearer the edges, turning in a clockwise direction. A sound like a single bell chime followed by the growl of a bull-roarer suddenly came to our ears.

Iago continued his struggles, first freeing his right front foot, then entangling it again as he freed the left, neighing wildly the while. The sparks were up to his shoulders by then, and he shook them like raindrops from his body and neck, his entire form taking on a soft, buttery glow.

The roaring increased in volume and small lightnings began to play at the heart of the red thing above us. A rattling noise caught my attention at that moment, and I glanced downward to discover that the purple griffin had slithered past and moved to interpose itself between us and the loud red phenomenon. It crouched like a gargoyle, facing away from us, watching the spectacle.

Just then, lago freed both front feet and reared. There was something insubstantial about him by then, what with his brightness and the spark-shot indistinctness of his outline. He might have neighed at that moment, but all other sounds were submerged by the incessant roar from above.

A funnel descended from the noisy formation-bright, flashing, wailing now, and tremendously fast. It touched the rearing horse, and for a moment his outline expanded enormously, becoming increasingly tenuous in direct proportion to this effect. And then he was gone. For a brief interval, the funnel remained stationary, like a perfectly balanced top. Then the sound began to diminish.

The trunk raised itself, slowly, to a point but a small distance-perhaps the height of a man-above the Pattern. Then it snapped upward as quickly as it had descended.

The wailing ceased. The roaring began to subside. The miniature lightnings faded within the circle. The entire formation began to pale and slow. A moment later, it was but a bit of darkness; another moment and it was gone.

No trace of lago remained anywhere that I could see.

"Don't ask me," I said when Random turned toward me. "I don't know either."

He nodded, then directed his attention toward our purple companion, who was just then rattling his chain.

"What about Charlie here?" he asked, fingering his blade.

"I had the distinct impression he was trying to protect us," I said, taking a step forward. "Cover me. I want to try something."

"You sure you can move fast enough?" he asked. "With that side..."

"Don't worry," I said, a trifle more heartily than necessary, and I kept moving.

He was correct about my left side, where the healing knife wound still ached dully and seemed to exercise a drag on my movements. But Grayswandir was still in my right hand and this was one of those occasions when my trust in my instincts was running high. I had relied on this feeling in the past with good results. There are times when such gambles just seem to be in order.

Random moved ahead and to the right. I turned sidewise and extended my left hand as you would in introducing yourself to a strange dog, slowly. Our heraldic companion had risen from its crouch and was turning.

It faced us again and studied Ganelon, off to my left. Then it regarded my hand. It lowered its head and repeated the ground-striking movement, cawed very softly-a small, bubbling sound-raised its head and slowly extended it. It wagged its great tail, touched my fingers with its beak, then repeated the performance. Carefully, I placed my hand on its head. The wagging increased; its head remained motionless. I scratched it gently about the neck and it turned its head slowly then, as if enjoying it. I withdrew my hand and dropped back a pace.

"I think we're friends," I said softly. "Now you try it. Random."

"Are you kidding?"

"No, I'm sure you're safe. Try it."

"What will you do if you are wrong?"

"Apologize."

"Great."

He advanced and offered his hand. The beast remained friendly.

"All right," he said half a minute or so later, still stroking its neck, "what have we proved?"

"That he is a watchdog."

"What is he watching?"

"The Pattern, apparently."

"Offhand then," said Random, moving back, "I would say that his work leaves something to be desired." He gestured at the dark area. "Which is understandable, if he is this friendly to anyone who doesn't eat oats and whinny."

"My guess is that he is quite selective. It is also possible that he was set here after the damage was done, to defend against further unappreciated activity."

"Who set him?"

"I'd like to know myself. Someone on our side, apparently."

"You can now test your theory further by letting Ganelon approach him."

Ganelon did not move.

"It may be you have a family smell about you," he finally said, "and he only favors Amberites. So I will pass, thank you."

"All right. It is not that important. Your guesses have been good so far. How do you interpret events?"