"Unthinkable!"

"But fortune is a blade with two edges, as you Romans say, and in the end it was a good thing for the king that this gossip spread, for it quickly reached the ears of a young courtesan who lived over a rug shop very near the palace gates. Her name was Naia, and she was already privy to whisperings about the mystery within the palace walls, as not a few of her clientele were members of the royal entourage. Mulling over all she had heard about the affair, and everything she knew about the treasure house and the manner in which it was built and guarded, she believed she saw the solution to the mystery.

"Naia might have gone straight to the king and named the thieves, but two things gave her pause. First, she had no real proof; and second, as I've already told you, the king was not famous for generous rewards. He might have merely thanked her and given her a silver bracelet and sent her on her way! So when she went to Rhampsinitus, she said only that she had a plan for solving the mystery, and that to implement this plan would cost her time and money; if her scheme came to nothing, she would pay her own losses-"

"A terrible idea! I always demand expenses and a fee, no matter whether I solve the mystery or not."

"-but if she was able to identify the thieves and explain how the silver had been stolen, then Rhampsinitus would have to pay her as much silver as her mule could carry and grant her a wish besides.

"At first this struck the king as too steep a price, but the more he thought about it, the fairer it seemed. After all, more silver than a mule could carry had already vanished from his treasure house, and would go on vanishing until the thieving was stopped. And what sort of wish could a courtesan make that the king of all Egypt could not grant with a mere wave of his hand? Besides, it seemed unlikely that a young courtesan would be able to solve the mystery that had confounded the king and all his advisors. He agreed to the bargain.

"Naia made a few inquiries. It did not take long to discover the name of the man she suspected and where he lived. She sent her servant to watch his movements, and to alert her immediately when this man should next pass near her window.

"A few days later the servant came running to her chamber, out of breath, and told her to look out the window. A young man wearing new clothes and sandals was looking at some expensive rugs displayed outside the shop below. Naia took a seat in her window and sent her servant to give the man a message."

"She accused him then and there?" I said.

"Of course not. The servant told the young man that his mistress had noticed him from her window and perceived him to be a man of taste and means, and wished to invite him up to her room. When the young man looked up, Naia was posed in the window in such a way that very few men could have resisted the invitation."

"This Naia," I said, "is beginning to remind me of a certain other Egyptian woman I know…"

Bethesda ignored me. "The young man came straight to her room. The servant brought cool wine and fresh fruit, and then sat outside the door, softly playing a flute. Naia and her guest talked for a while, and soon it became evident that the young man desired her greatly. But Naia insisted that they play a game first. Relaxed by the heat of the day, his tongue loosened by wine and desire, the young man agreed. This was the game-that each of them should reveal to the other two secrets, beginning with the young man. What was the greatest crime of his life? And what was his cleverest trick?

"These questions gave the young man pause, and a shadow of sadness crossed over his face, followed by a laugh. 'I can answer you easily enough,' he said,' but I'm not sure which is which. My greatest crime was cutting off my brother's head. My greatest trick was putting his head and body back together again. Or perhaps it's the other way around!' He smiled ruefully and looked at Naia with desiring eyes. 'And you?' he whispered.

"Naia sighed. 'Like you,' she said, 'I'm not sure which is which. I think my greatest trick was discovering the thief who has been robbing King Rhampsinitus's treasure house, and my greatest crime will be when I hand him over to the king! Or perhaps it will end up being the other way around…

"The young man gave a start and came to his senses. He rose and ran toward the window, but a great iron cage, like the one that had trapped his brother, came down on him from the ceiling. He could not escape. Naia sent her servant to fetch the king's guards.

" 'And now,' she said, 'while we wait, perhaps you can explain to me what I don't already know about the plundering of the king's silver.'

"The young man was at first furious, and then he began to weep, realizing the fate that awaited him. Death was the sweetest punishment he could hope for. More likely he would have his hands and feet chopped off and would live the rest of his life as a cripple and a beggar. 'But you must know everything already,' he cried. 'How did you find me out?'

"Naia shrugged. 'I thought for a while that the two guards might be in collusion, and that the headless body was a third confederate, whom they killed when he was captured so that he could not betray them. But the guards knew of the traps, and so could have avoided them; and I doubt that any man in Memphis would allow himself to appear half-shaven before the king, even to disguise his own guilt. Besides, everyone agrees that the treasure house doors cannot be opened without breaking the seals. So there must have been some other way in. How could that be, unless the architect planned it? And who could know of any secret entrance except the architect's two sons?'

" 'It's true,' the young man said. 'My father showed it to before he died-a secret entrance opened by pressing on a single stone in the palace wall, impossible to find unless you know the exact measurements. Two men, or even one, can open it with a simple push, take whatever they can carry from the treasure house, and then seal the door behind them so that no one could ever find it. I told my older brother that we were taking too much, and that the king would notice; but our father had told us that the king sorely underpaid him for all his years of effort, and that by his design we should always have a steady income.'

" 'But then your brother was caught in the iron cage,' said Naia.

" 'Yes. He could stick his head outside the bars, but nothing more. He begged me to cut off his head and take it with me; otherwise, someone in the palace would recognize him and all our family would be brought to ruin.'

" And you did as he demanded. How terrible for you! How brave! But you were a good brother. You reclaimed his body, united it with the head and sent him on his way to the afterlife.'

" 'I might not have done so, but my mother insisted. I disguised myself and deceived the guards into drinking drugged wine. In the darkness I cut down my brother's body and hid him among the wineskins in the cart. Before I carried him off, I shaved the guards, so that the king would not suspect them of conspiring with me.'

"Naia looked out the window. 'And here are those two guards now, hurrying this way across the square.'

" 'Please,' the young man begged, thrusting his head outside the cage, 'cut off my head! Let me share my brother's fate! Otherwise who knows what horrible punishments the king will inflict on me?'

"Naia picked up a long blade and pretended to consider it.

'No,' she said at last, even as the guards' footsteps were booming on the stairs. 'I think we will let justice take its course.'

"So the young man was brought before King Rhampsinitus, along with Naia, who came to claim her reward. The thief's cache of silver was found hidden in his home and restored to the treasure house. The secret entrance was sealed over, and Naia was allowed to load a mule with as much silver as the beast could carry.