Once this great merfolk city had ruled a whole ocean. Now, its sunken palaces and pearly halls were ruled by barnacles. First had come caste wars, then cold waters, and last Homarids. The Vodalians had escaped the crab folk by retreating to a kingdom across the sea. They had abandoned their capital city to hammerheads and octopi.

Of course, one resident remained-a beast so ancient that even the Vodalians had thought him dead. From his deep caves beneath the ruined city, the blue Primeval called to Darigaaz and the other dragons. Through rock and water, air and centuries, Dromar called them.

Treva trimmed her wings along white-scaled flanks and dived. Beside her, Rith also plunged. They angled toward the black ocean rift alongside Vodalia. Darigaaz furled his own wings and followed. The dragon nations flocked behind.

As Darigaaz descended, the air around him grew pregnant with light. His medallions rang together in a chorus of bells. The sea rose toward his bent brow. Already, it received Treva and Rith with white-splashing coronas.

Darigaaz closed his eyes and let his crest cleave the waves. He struck with tremendous force. The water parted around him. He dragged air down in its midst. The sea closed, enveloping him.

The water was as warm and salty as blood. It seeped into Darigaaz's scales. His momentum carried him deep into the cleft of the sea floor. Treva and Rith swam below. Darigaaz spread his wings and drove downward.

The water grew tepid. It lost its steamy vitality and squeezed him in an unwelcoming fist. Each surge of his wings propelled him to colder, darker, deeper reaches.

Vodalia disappeared above. Canyon walls rose. Partway down the rift, even the voracious seaweed gave up its hold.

Only black rock remained. Darigaaz's wings flung twirling spirals of bio-luminescence up behind him.

Deeper still he swam. The sea wanted his air. It gripped his lungs in a brutal fist. He had never dived so deep. He would have turned back now except for the gleaming outlines of the Primevals below.

Then he saw dim light spilling from a cave. It was no mere cave. This was a grand entranceway carved from the very rock- an enormous and elaborate facade. What armies of mortal beings had slaved to fashion the great gates of ivory? What patient creatures had carved the colonnade beyond? How many score years had the Vodalians worked in these killing depths to create this underwater palace? And why?

A blue flash came at the center of the gates. It illumined the two Primevals, their claws clutched about the locking mechanism. Lightning cracked through the metal. It tumbled apart in shards. A compression wave carried the noise. Ivory gates swung slowly outward, giving a clear view of the passage beyond. It was lined with columns. Light intensified toward the end of the passage. Through the gap swam Treva and Rith and Darigaaz. From chill depths behind came the rest of the dragon nations.

This was no palace but a tomb. Between the columns, wide niches were carved, stacked from ceiling to floor. Those spaces held dead merfolk. Their bodies had been preserved by the cold and depth, and even their clothes remained intact. They wore simple tunics, and their foreheads were marked with the sign of servitude. No doubt, they had carved these walls not knowing they fashioned their own graves. It was the wicked privilege of gods that they bury thousands of their people with them.

The god would lie ahead.

Another surge brought Darigaaz up beside Treva and Rith. Three sets of wings hurled the water back. Trailing vortices stirred the bodies from their niches. Corpses tumbled in a frenzy behind them. Darigaaz was grieved at the desecration.

But they weren't corpses. They were living-or unliving- guardians.

Merfolk zombies swarmed the dragon nations. They clawed eyes from their sockets. They pierced eardrums with reaching bones. They swam down dragon throats and gnawed them away from the inside. Suddenly, the water was full of blood, dragon blood.

Though breath was failing him, Darigaaz turned and plunged into the swarm of zombies. His claws sent fiery magic out through the waters. Boiling liquid shot from his fingers, impaling undead.

The monsters converged. They tore at his wings. Darigaaz shot lightning through them. They gouged his eyes. Darigaaz poured flame into them. More zombies attacked.

They were too many. If he remained, they would kill him. Already, scores of dragon bodies lay dead upon the ceiling.

Darigaaz felt something powerful clutch his arm. He whirled with another spell ready.

It was Treva, gleaming white in that bloody channel. Come, she sent, mind to mind, they cannot reach beyond the waters. Come.

What of these who die? Darigaaz asked.

They are the sacrifice, that Dromar and the rest of us might live. Come, now. There was no arguing with her. She was a dragon god.

With a final flick of his tail, Darigaaz drove himself from the swarming zombies. Side by side, he and Treva shot through the waters. They reached the end of the colonnade. Light streamed down through a dappled surface. The two creatures launched themselves up.

Their mantles sprayed water as they bounded onto a wide, flat space. They stood, gushing. Darigaaz's red scales were only deepened by the blood of his people. Somehow Treva had emerged untainted. Before them, farther in, stood Rith, glimmering.

"Focus is everything, Darigaaz," Rith whispered. Her mouth steamed in the cave air. "Why do you defend dragon mortals, beset for a moment, and ignore dragon immortals, beset for millennia?" Darigaaz shook out his scales. "They are dying." "Not the ones who swim through," Rith replied, nodding toward the pool.

Up from it rose dragon after dragon. Most had tattered wings. Some were missing eyes. A few were maimed beyond healing, with only enough will to reach air before they died.

"Come, let us make room," Treva said, gesturing Darigaaz deeper into the wide cavern. He followed her.

This upper chamber had been carved as well, in palatial majesty. Dragons and draconic figures appeared everywhere. Friezes filled the walls, depicting primordial battles. Statuary flanked the main way-two huge sentinel dragons, and lesser serpents beyond. The floor between them was literally paved in gold, a dragon hoard as of old. It cast the shadows of their claws against the breasts of the beasts as they strode inward. "An opulent tomb," Darigaaz whispered in awe. Rith shook her head. "This is no tomb, Rhammidarigaaz. This is a trap, a gilded cage. The merfolk created it for Dromar. They lured him here with slaves, with grandeur, with gold. They enthroned him on the seat where he has sat trapped ever since. It was the next science mortals stole from us, the science of desire. They learned our hearts and turned our hearts against us." She looked sharply at him. "Behold." She gestured before them.

A glorious dais in gold and marble presided over the throne room. It was perfectly conceived, a hexagonal platform upon which, in gemstones, was rendered the form of a blue dragon. On that glittering mosaic lay the dragon himself. He was curled as if in sleep. His blue scales were the precise color of the sapphires beneath him. His wings were folded across his body like robes of state.

"What sort of deep magic holds him there?" asked Darigaaz.

"The deepest magic of all," replied Treva. "Desire. The merfolk gave him everything he could wish for. They sated his desire, removing it. Desire is life. Without it, a creature is dead."

Darigaaz strode quietly toward the dais and gazed at the dragon there. He seemed asleep. His claws spread jealously across the mosaic.

"Desire?" Darigaaz asked. "Mere desire?"

Treva spoke in a gentle voice. "There is nothing mere about desire. It drives all action. It brings Yawgmoth to Dominaria. It sends Urza to Phyrexia. It brings us here today to free a dragon god. Desire is the only force."