He turned the stiletto again and again, fascinated by the play of light upon the blade, and the wavering candles seemed to cast a disapproving expression across the white face of Virgil. And there came again that sound that had barely ruffled the surface of his attention: it was the sound of church bells, and Faust remembered belatedly that this was Easter Sunday.

Suddenly, as quickly as it had arisen, his black mood began to dissipate. He moved to the window and opened the drapes.

"I've been breathing too deeply of the fumes of mercury," he said to himself. "I must remember, the Great Work is dangerous to the practitioner, and carries with it on one side the danger of failure, on the other, success and the risk of premature despair. Better for me to go out into the air this fine morning, walk about on the newly sprung grass, even take for myself a glass of beer at the corner tavern, aye, and perhaps a toasted sausage, too, for my digestion feels better this morning. The vapors from the alembic have their counterpart in the vapors of the mind. I'll go forth this instant to dispel them."

And so saying, Faust slipped into his cloak with the ermine trim, a cloak that an emperor might not have scorned, and, making sure he had his wallet, though his credit was high, left his chamber, heading out the front door into the bright sunshine and uncertainties of the new day, uncertainties that even the most skilled of alchemists might not foresee.

The bells from the many churches of Cracow were sounding their Te Deums as Faust walked along Little Casimir Street, away from the Florian Gate, in the direction of Drapers' Hall in the big market square. He could tell each church's bells by their sound: the high and heavenly carillon from the convent of Mogila, the brilliant steely middle tones of St. Wenceslas, the great rolling voice of St. Stanislaw, and, dominating all, the thrilling bass from the deep bells of the great Church of Our Lady at the corner of the market square. It was a brilliant Easter Sunday, and the sun's golden light seemed to penetrate into every corner of the steep-roofed old city. The sky overhead was a bright blue, and there were soft-edged, puffy little white clouds of the sort painters like to depict as fitting resting-places for cherubs and allegorical figures. So fine a day could not help but cheer Faust's spirits, and so he took the shortcut to the market square along the noisome little alley called the Devil's Walk. Here the buildings bulged out like fat-bellied men in a steam bath, and there was not room for two people to walk abreast. The alley, with the steep overhanging roofs blocking the light, was a place of deep shadow on even the finest day. Faust had not gone ten yards before he began to regret his decision. Should he not have taken the high street, even if it would take a few minutes longer? After all, what did time matter to an alchemist and a philosopher?

He almost turned back, but some .stubbornness in his nature decided him to persevere. The final turning of the alley was just ahead, and after that it would give out to the noisy bustle of the market square.

He approached the corner, walking more rapidly now, his scholar's gown rustling as he urged his thin shanks to greater speed. He went by a darkened doorway on his right and another on his left. There was light ahead.

And then there was a voice at his shoulder, saying, "Excuse me, sir, a moment of your time…"

Faust stopped and turned, prepared to chastise the importunate wretch who had the temerity to delay him. He looked into the doorway but could see no person. He was about to go on when he heard a whirring sound in the air. His rapid brain told him that something was amiss; but the insight came to him almost simultaneous with the crashing of a blunt object of considerable hardness against his temple. He saw stars for a moment, and great shooting comets, and then knew nothing as black Unconsciousness gathered him into her dark mantle.

While this was going on, in another part of town, at the little tavern called the Pied Cow, a tall, yellow-haired jackanapes of a fellow was having a morning bowl of borscht at one of the rustic tables set outside. He was a tall, thin fellow, cleanshaven in the new Italian fashion, his clothing a gentleman's cast-offs, his head o'er-topped by a mass of unruly curls. He sat now, thin features intent, red lips pursed as he surveyed the street.

This jackanapes, whose name was Mack, and whose sobriquet was the Club, a reference to the instrument that he carried in his belt, and used more often than an honest man would, had come to Cracow, some say from Troyes in Frankland, others from the stews of Londontown in distant England, to seek his fortune. Mack the Club was not prepared to let his fortune wait its own sweet time to call. He was an enterprising rogue, quick-witted and not unintelligent, who had spent a year in a monastery learning the scrivener's trade before deciding to follow more direct methods of making his fortune.

Hearing of Faust, he had spied upon the learned doctor, well aware of Faust's reputation as a necromancer who had won great wealth in this world in the form of precious metals used in his alchemical pursuits, and gifts and souvenirs from grateful kings who had found the doctor's remedies efficacious in the treatment of their myriad woes.

Mack had devised a scheme to rob the prominent doctor, figuring that a magician like Faust who has piled up goods in Heaven has little need for the dross of this Earth. Mack had accordingly taken unto himself a confederate, a loutish Lett who had no skill but the ability to waylay passersby by knocking them over the head with his cudgel. Mack had determined that this was the very day on which he would divest Faust of his more portable worldly goods.

For a week Mack and the Lett had scouted out the territory and noted the movements of the good doctor. Faust was a moody sort and not given to those regularities of habit that make honest men so easy to steal from. For one thing, he stayed indoors a lot, pursuing his magical experiments. But even Faust had to come out occasionally, and when he did, his footsteps always moved in a preordained direction, down Little Casimir Street and into the Devil's Walk, the shortcut to the great Jagiellonian University.

When at last Faust emerged on this Easter Sunday, Mack's scheme was set and all was in readiness. The Lett had been stationed in a dark doorway in the alley, and Mack took up his position at the Tavern of the Pied Cow opposite Faust's dwelling place. And now the time had come, for the Lett had agreed to rush back to the tavern to warn Mack if anything went wrong at his end. Mack finished his borscht, laid down a copper coin for payment, and, moving in a leisurely way that belied his inner excitement, strolled over to the doctor's residence. A glance up and down the street ascertained that the good folk of the neighborhood were away for Easter services. Under his arm Mack had a parcel of books purporting to give magical formulas. He had picked them up at no cost from a monastery library in Czvniez. If the unexpected should occur and someone should enquire as to his purpose in the doctor's house, Mack could say he was delivering these books, or offering them to the doctor for sale; for Faust was known to collect such things in his quest for the formula for the Philosopher's Stone.

Mack strolled to Faust's house. He knocked at the door for form's sake. No one responded. He had seen the landlady leave earlier for services, her wimple somewhat askew, for she was known to be a tippler, and a basket of herbs and simples on her arm, since the good woman was much given to visiting her sick aunt and plying her with country remedies.