He walked to his jeep. The gentle, rippling click of key sliding into ignition was crisp in the silence. For a moment he waited, feeling at the stillness. Clustered on the summit of a towering mound, the fractured rooftops of Erbil hovered far in the distance, poised in the clouds like a rubbled, mud-stained benediction. The leaves clutched tighter at the flesh of his back.

    Something was waiting.

    "Allah ma'ak, chawaga."

    Rotted teeth. The Kurd was grinning, waving farewell. The man in khaki groped for a warmth in his pit of his being and came up with a wave and a mustered smile. It dimmed as he looked away. He started the engine, turned in a narrow, eccentric U and headed toward Mosul. The Kurd stood watching, puzzled by a heart- dropping sense of loss as the jeep gathered speed. What was it that was gone? What was it he had felt in the stranger's presence? Something like safety, he remembered; a sense of protection and deep well-being. Now it dwindled in the distance with the fast-moving jeep. He felt strangely alone.

The painstaking inventory was finished by ten after six. The Mosul curator of antiquities, an Arab with sagging cheeks, was carefully penning a final entry into the ledger on his desk. For a moment he paused, looking up at his friend, as he dipped his penpoint into an inkpot. The man in khaki seemed lost in thought. He was standing by a table, hand in his pockets, staring down at some dry, tagged whisper of the past. The curator observed him, curious, unmoving; then returned to the entry, writing in a firm, very small neat script. Then at last he sighed, setting down the pen as he noted the time. The train to Baghdad left at eight. He blotted the page and offered tea.

    The man in khaki shook his head, his eyes still fixed upon something on the table. The Arab watched him, vaguely troubled. What was in the air? There was something in the air. He stood up and moved closer; then felt a vague prickling at the base of his neck as his friend at last moved, reaching down for an amulet and cradling it pensively in his hand. It was a green stone head of the demon Pazuzu, personification of the southwest wind. Its dominion was sickness and disease. The head was pierced. The amulet's owner had worn it as a shield.

    "Evil against evil," breathed the curator, languidly fanning himself with a French scientific periodical, an olive-oil thumbprint smudged on the cover.

    His friend did not move; he did not comment.

    "Is something wrong?"

    No answer.

    "Father?"

    The man in khaki still appeared not to hear, absorbed in the amulet, the last of his finds. After a moment he set it down, then lifted a questioning look to the Arab. Had he said something?

    "Nothing."

    They murmured farewells.

    At the door, the curator took the old man's hand with an extra firmness. "My heart has a wish, Father: that you would not go."

    His friend answered softly in terms of tea; of times; of something to be done.

    "No, no, no, I meant home."

    The man in khaki fixed his gaze on a speck of boiled chick-pea nestled in a corner of the Arab's mouth; yet his eyes were distant. "Home," he repeated. The word had the sound of an ending: "The States," the Arab curator added, instantly wondering why he had.

    The man in khaki looked into the dark of the other's concern. He had never found it difficult to love this man.

    "Good-bye;" he whispered; then quickly turned and stepped into the gathering gloom of the streets and a journey home whose length seemed somehow undetermined.

    "I will see you in a year!" the curator called after him from the doorway. But the man in khaki never looked back. The Arab watched his dwindling form as he crossed a narrow street at an angle, almost colliding with a swiftly moving droshky. Its cab bore a corpulent old Arab woman, her face a shadow behind the black lace veil draped loosely over her like a shroud. He guessed she was rushing to some appointment. He soon lost sight of his hurrying friend.

    The man in khaki walked, compelled.. Shrugging loose of the city, he breached the outskirts, crossing the Tigris. Nearing the ruins, he slowed his pace, for- with every step the inchoate presentiment took firmer, more horrible form. Yet he had to know. He would have to prepare.

    A wooden plank that bridged the Khosr, a muddy stream, creaked under his weight. And then he was there; he stood on the mound where once gleamed fifteen-gated Nineveh, feared nest of Assyrian hordes. Now the city lay sprawled in the bloody dust of its predestination. And yet he was here, the air was still thick with him, that Other who ravaged his dreams.

    A Kurdish watchman, rounding a corner, unslung his rifle and began to run toward him, then abruptly stopped and grinned with a wave of recognition and proceeded on his rounds.

    The man in khaki prowled the ruins. The Temple of Nabu. The Temple of Ishtar. He sifted vibrations. At the palace of Ashurbanipal he paused; then shifted a sidelong glance to a limestone statue hulking in situ: ragged wings; taloned feet; bulbous, jutting, stubby penis and a mouth stretched taut in a feral grin. The demon Pazuzu.

    Abruptly he sagged.

    He knew.

    It was coming.

    He stared at the dust. Quickening shadows.. He heard dim yappings of savage dog packs prowling the fringes of the city. The orb of the sun was beginning to fall below the rim of the world. He rolled his shirt sleeves down and buttoned them as a shivering breeze sprang up. Its source was southwest.

    He hastened toward Mosul and his train, his heart encased in the icy conviction that soon he would face an ancient enemy.

I: The Beginning

CHAPTER ONE

Like the brief doomed flare of exploding suns that registers dimly on blind men's eyes, the beginning of the horror passed almost unnoticed; in the shriek of what followed, in fact, was forgotten and perhaps not connected to the horror at all. It was difficult to judge.

    The house was a rental. Brooding. Tight. A bride colonial gripped by ivy in the Georgetown section of Washington, D. C. Across the street was a fringe of campus belonging to Georgetown University; to the rear, a sheer embankment plummeting steep to busy M Street and, beyond, the muddy Potomac. Early on the morning of April 1, the house was quiet. Chris MacNeil was propped in bed, going over her lines for the neat day's filming; Regan, her daughter, was sleeping down the hall; and asleep downstairs in a room off the pantry were the middle-aged housekeepers, Willie and Karl. At approximately 12: 25 A. M., Chris glanced from her script with a frown of puzzlement. She heard rapping sounds. They were odd. Muffed. Profound. Rhythmically clustered. Alien code tapped out by a dead man.