"Ready yourself, Melisanda. It's Oriseus."

She glanced at him and nodded. "I don't know if I can cast any spells in here," she said.

Aeron handed Dalrioc's wand to her. "This might work. I think Dalrioc crafted this scepter to draw its power from the stone." The portal was nearly complete; Aeron quickly edged away to leave plenty of space between them. "Don't hesitate when he appears. We can't give him any chance to work his spells against us."

With a thin tearing sound a form materialized in the spiraling shadow and emerged, shedding streamers of tangible darkness like a swimmer rising from the deeps. Slender and agile, the intruder sprang into motion before the curtain began to fail, crouching to aim a long bow at Aeron.

Melisanda raised Dalrioc's wand, ready to unleash its deadly ray, but Aeron shouted, "No! It's Eriale!"

He raced to catch Melisanda's hand before she struck. Melisanda looked at him, startled, while Eriale's hands blurred and the bow sang its shrill song. Aeron twisted catlike in mid-leap, but Eriale's arrow caught him high on the hip, skewering his side. His legs seemed to turn to rubber, spilling him to the cold flagstones before the first claws of pain sank into his awareness. Gasping in shock, he turned to look at his foster-sister.

Eriale met his eyes with a look cold enough to chill his heart. No trace of emotion or recognition crossed her face. With mechanical certainty, she reached for her quiver and drew another arrow, its steel point aimed at his heart. She drew the bowstring back to her ear, death in her unblinking eyes.

"Eriale, it's me!" Aeron cried, while warm blood streamed from his wound. "Don't shoot!"

The archer hesitated for a moment, the merest hint of indecision softening her expression, but then she steeled herself and steadied her aim for the killing shot.

Melisanda barked an arcane word and swept a blinding ray of sparkling frost from the iron scepter across Eriale. Eriale winced but didn't make a sound, dropping the bow to cradle her frost-burned arms to her body. Her blank eyes still held Aeron fixed in a deadly glare. The Vilhonese sorceress dashed up to kick the bow away, and wheeled to face Aeron. "Are you-"

"I think I'll live," he answered, trying to climb to his feet. He leaned awkwardly against the chamber wall, staring at Eriale. Pressing one hand to his side, he glanced down at the arrow. He didn't know much of the healing arts and wasn't willing to take any chances with trying to pull it out or push it through. Pinning the arrow in place with his right hand, he snapped off the shaft and steeled himself to push it to the back of his mind for the moment. "She didn't get a true shot at me, thank Assuran. Let me see if I can work a countermagic to dispel Oriseus's charm over her."

Pushing himself off the wall, Aeron moved over to where Eriale crouched and knelt beside her, seeking some indication of the type of charm or geas she'd been placed under. He winced at the blistered white streaks and glistening frost that showed where Dalrioc's wand had struck her-if Melisanda had missed by only a foot or two, Eriale might have been critically injured. He worked a simple counter-spell to remove the magics that ensorceled the archer.

Eriale flinched, but a hint of color returned to her face, and the blankness fell away from her stare. "Aeron? What happened-" She gasped as the pain of her injuries flooded through her, no longer checked by the ruthless dominion that had turned her against him. She sagged to the floor, suppressing a sob.

"Eriale, I'm sorry," Aeron began. "I didn't know-"

He was interrupted by the sudden cold certainty that shadow-magic was gathering under a conscious will. His heart lurched with the sensation of magic at work. Behind him, Melisanda cried out in alarm. "The portal, Aeron!"

As the twisting shadow door through which Eriale had come faded out altogether, the streamers of darkness began to sink to the floor, coalescing into a single pool or slick of night-black shadow stuff. The pool quivered once, and then something began to rise from its depths, drawing its shape from the darkness, a tall man with cruel, fine features.

"Aeron, you fool! You have no idea what harm your interference has caused," Oriseus said, speaking as he rose from the ebon circle. "You have doomed all of us by unchaining the Shadow Stone." The sorcerer's hands turned and flashed, shaping a spell with frightening celerity.

Aeron barked out the words to a shielding-spell, covering both himself and Eriale with a shimmering green field of energy. From the raging Shadow Stone tendrils of inky darkness shot out to play along the curving sphere of force, corrupting it instantly with black veins of negative energy. Behind him, Melisanda dodged behind one of the pillars that divided the open chamber from the gallery that ringed it, raising Dalrioc's wand to attack Oriseus. But the archmage finished his spell first, directing a serpentine ray of crackling purple energy at Aeron. It sliced through Aeron's shield without the least interference and struck Aeron full in the chest. He fell to the stone floor, stunned.

Eriale recoiled in fright, but then threw herself over him, trying to protect him from Oriseus's spell. "Aeron!"

Oddly enough, he didn't seem to be injured. He shook off Eriale's attentions. "I'm all right," he told her.

Melisanda shouted the command that activated Dalrioc's deadly scepter and sent a blast of arctic air scything toward Oriseus, but the ancient sorcerer whispered another word and turned sideways, disappearing from view. Passing near the Shadow Stone, the frigid ray seemed to attract a coursing conduit of energy from the pulsating crystal, suddenly doubling and redoubling in strength until it shattered one of the stone pillars across the chamber.

"Aeron, Oriseus vanished! Can you see him?"

Aeron struggled to his knees, one hand pressed to the oddly charred patch over his heart. Oriseus's spell had done something to him, he was certain of that; he could sense black, cold energy pricking at his skin, dire potential as yet unrealized. "No, I don't, but that doesn't mean that he left. Be careful, Melisanda-the stone's influence is wreaking havoc with our spells."

"Indeed it is." Oriseus's voice was strong and confident, near Aeron yet somehow impossibly distant. "I must confine the stone's power again, or we shall all be killed. When you struck my spell from the stone's bindings, Aeron, you struck away the only thing that protects all of Chessenta from its power." Oriseus suddenly appeared before the fallen stone, an impossible caricature of a man. He was a flat image, a playing-card figure that winked into nonexistence when he happened to face them edge-on.

Aeron shook his head, astonished. He'd heard of such spells, but he'd never seen one cast before. "I don't believe you, Oriseus. And even if I did, I'm willing to make that sacrifice. Better that the three of us should die here and put a stop to this than allow you to finish what you've started."

"Your life is yours to throw away if you wish," the sorcerer said with venom in his voice, "but what of your sister's and your friend's? And you accuse me of ruthlessness." Oriseus stalked forward and then shifted sideways, vanishing. Aeron caught a glimpse of him spinning across the room, flashing in and out of reality. "We don't have much time for this debate, Aeron. The stone will decide it for us in a matter of minutes!"

In the room's center, the Shadow Stone now burned like a black star, too bright to look at directly. Its dreadful power threw stark shadows against the walls, and it seemed almost distant, as if it were sinking out of sight through the very stuff of reality. The floor and ceiling buckled and twisted toward the stone, drawn to it by a force greater than any maelstrom.

"Then that's it," Aeron replied.