I was halfway through my burger before I remembered to breathe.

Annabeth slurped her shake.

Grover picked at the fries, and eyed the tray's waxed paper liner as if he might go for that, but he still looked too nervous to eat.

"What's that hissing noise?" he asked.

I listened, but didn't hear anything. Annabeth shook her head.

"Hissing?" Aunty Em asked. "Perhaps you hear the deep-fryer oil. You have keen ears, Grover."

"I take vitamins. For my ears."

"That's admirable," she said. "But please, relax."

Aunty Em ate nothing. She hadn't taken off her headdress, even to cook, and now she sat forward and interlaced her fingers and watched us eat. It was a little unsettling, having someone stare at me when I couldn't see her face, but I was feeling satisfied after the burger, and a little sleepy, and I figured the least I could do was try to make small talk with our hostess.

"So, you sell gnomes," I said, trying to sound interested.

"Oh, yes," Aunty Em said. "And animals. And people. Anything for the garden. Custom orders. Statuary is very popular, you know."

"A lot of business on this road?"

"Not so much, no. Since the highway was built… most cars, they do not go this way now. I must cherish every customer I get."

My neck tingled, as if somebody else was looking at me. I turned, but it was just a statue of a young girl holding an Easter basket. The detail was incredible, much better than you see in most garden statues. But something was wrong with her face. It looked as if she were startled, or even terrified.

"Ah," Aunty Em said sadly. "You notice some of my creations do not turn out well. They are marred. They do not sell. The face is the hardest to get right. Always the face."

"You make these statues yourself?" I asked.

"Oh, yes. Once upon a time, I had two sisters to help me in the business, but they have passed on, and Aunty Em is alone. I have only my statues. This is why I make them, you see. They are my company." The sadness in her voice sounded so deep and so real that I couldn't help feeling sorry for her.

Annabeth had stopped eating. She sat forward and said, "Two sisters?"

"It's a terrible story," Aunty Em said. "Not one for children, really. You see, Annabeth, a bad woman was jealous of me, long ago, when I was young. I had a… a boyfriend, you know, and this bad woman was determined to break us apart. She caused a terrible accident. My sisters stayed by me. They shared my bad fortune as long as they could, but eventually they passed on. They faded away. I alone have survived, but at a price. Such a price."

I wasn't sure what she meant, but I felt bad for her. My eyelids kept getting heavier, my full stomach making me sleepy. Poor old lady. Who would want to hurt somebody so nice?

"Percy?" Annabeth was shaking me to get my attention. "Maybe we should go. I mean, the ringmaster will be waiting."

She sounded tense. I wasn't sure why. Grover was eating the waxed paper off the tray now, but if Aunty Em found that strange, she didn't say anything.

"Such beautiful gray eyes," Aunty Em told Annabeth again. "My, yes, it has been a long time since I've seen gray eyes like those."

She reached out as if to stroke Annabeth's cheek, but Annabeth stood up abruptly.

"We really should go."

"Yes!" Grover swallowed his waxed paper and stood up. "The ringmaster is waiting! Right!"

I didn't want to leave. I felt full and content. Aunty Em was so nice. I wanted to stay with her a while.

"Please, dears," Aunty Em pleaded. "I so rarely get to be with children. Before you go, won't you at least sit for a pose?"

"A pose?" Annabeth asked warily.

"A photograph. I will use it to model a new statue set. Children are so popular, you see. Everyone loves children."

Annabeth shifted her weight from foot to foot. "I don't think we can, ma'am. Come on, Percy—"

"Sure we can," I said. I was irritated with Annabeth for being so bossy, so rude to an old lady who'd just fed us for free. "It's just a photo, Annabeth. What's the harm?"

"Yes, Annabeth," the woman purred. "No harm."

I could tell Annabeth didn't like it, but she allowed Aunty Em to lead us back out the front door, into the garden of statues.

Aunty Em directed us to a park bench next to the stone satyr. "Now," she said, "I'll just position you correctly. The young girl in the middle, I think, and the two young gentlemen on either side."

"Not much light for a photo," I remarked.

"Oh, enough," Aunty Em said. "Enough for us to see each other, yes?"

"Where's your camera?" Grover asked.

Aunty Em stepped back, as if to admire the shot. "Now, the face is the most difficult. Can you smile for me please, everyone? A large smile?"

Grover glanced at the cement satyr next to him, and mumbled, "That sure does look like Uncle Ferdinand."

"Grover," Aunty Em chastised, "look this way, dear."

She still had no camera in her hands.

"Percy—" Annabeth said.

Some instinct warned me to listen to Annabeth, but I was fighting the sleepy feeling, the comfortable lull that came from the food and the old lady's voice.

"I will just be a moment," Aunty Em said. "You know, I can't see you very well in this cursed veil…."

"Percy, something's wrong," Annabeth insisted.

"Wrong?" Aunty Em said, reaching up to undo the wrap around her head. "Not at all, dear. I have such noble company tonight. What could be wrong?"

"That is Uncle Ferdinand!" Grover gasped.

"Look away from her!" Annabeth shouted. She whipped her Yankees cap onto her head and vanished. Her invisible hands pushed Grover and me both off the bench.

I was on the ground, looking at Aunt Em's sandaled feet.

I could hear Grover scrambling off in one direction, Annabeth in another. But I was too dazed to move.

Then I heard a strange, rasping sound above me. My eyes rose to Aunty Em's hands, which had turned gnarled and warty, with sharp bronze talons for fingernails.

I almost looked higher, but somewhere off to my left Annabeth screamed, "No! Don't!"

More rasping—the sound of tiny snakes, right above me, from… from about where Aunty Em's head would be.

"Run!" Grover bleated. I heard him racing across the gravel, yelling, "Maia!" to kick-start his flying sneakers.

I couldn't move. I stared at Aunty Em's gnarled claws, and tried to fight the groggy trance the old woman had put me in.

"Such a pity to destroy a handsome young face," she told me soothingly. "Stay with me, Percy. All you have to do is look up."

I fought the urge to obey. Instead I looked to one side and saw one of those glass spheres people put in gardens— a gazing ball. I could see Aunty Em's dark reflection in the orange glass; her headdress was gone, revealing her face as a shimmering pale circle. Her hair was moving, writhing like serpents.

Aunty Em.

Aunty "M."

How could I have been so stupid?

Think, I told myself. How did Medusa die in the myth?

But I couldn't think. Something told me that in the myth Medusa had been asleep when she was attacked by my namesake, Perseus. She wasn't anywhere near asleep now. If she wanted, she could take those talons right now and rake open my face.

"The Gray-Eyed One did this to me, Percy," Medusa said, and she didn't sound anything like a monster. Her voice invited me to look up, to sympathize with a poor old grandmother. "Annabeth's mother, the cursed Athena, turned me from a beautiful woman into this."

"Don't listen to her!" Annabeth's voice shouted, somewhere in the statuary. "Run, Percy!"

"Silence!" Medusa snarled. Then her voice modulated back to a comforting purr. "You see why I must destroy the girl, Percy. She is my enemy's daughter. I shall crush her statue to dust. But you, dear Percy, you need not suffer."