Free Percy Jackson & The Olympians: The Demigod Files by Rick Riordan

“You’ll—you’ll move my rock?”
    “It’s better than looking at you.” Thalia glanced at me. “Be quick about it.” Then she shoved Sisyphus toward us.
    She put her shoulder against the rock and started pushing it very slowly uphill.
    Sisyphus scowled at me distrustfully. He pinched my nose.
    “Ow!” I said.
    “So you’re really not a Fury,” he said in amazement. “What’s the flower for?”
    “We’re looking for someone,” I said. “The flower is helping us find him.”
    “Persephone!” He spit in the dust. “That’s one of her tracking devices, isn’t it?” He leaned forward, and I caught an unpleasant whiff of old-guy-who’s-been-rolling-a-rock-foreternity. “I fooled her once, you know. I fooled them all.”
    I looked at Nico. “Translation?”
    “Sisyphus cheated death,” Nico explained. “First he chained up Thanatos, the reaper of souls, so no one could die. Then when Thanatos got free and was about to kill him, Sisyphus told his wife to do incorrect funeral rites so he wouldn’t rest in peace. Sisy here—May I call you Sisy?”
    “No!”
    “Sisy tricked Persephone into letting him go back to the world to haunt his wife. And he didn’t come back.”
    The old man cackled. “I stayed alive another thirty years before they finally tracked me down!”
    Thalia was halfway up the hill now. She gritted her teeth, pushing the boulder with her back. Her expression said Hurry up!
    “So that was your punishment,” I said to Sisyphus. “Rolling a boulder up a hill forever. Was it worth it?”
    “A temporary setback!” Sisyphus cried. “I’ll bust out of here soon, and when I do, they’ll all be sorry!”
    “How would you get out of the Underworld?” Nico asked. “It’s locked down, you know.”
    Sisyphus grinned wickedly. “That’s what the other one asked.”
    My stomach tightened. “Someone else asked your advice?”
    “An angry young man,” Sisyphus recalled. “Not very polite. Held a sword to my throat. Didn’t offer to roll my boulder at all.”
    “What did you tell him?” Nico said. “Who was he?”
    Sisyphus massaged his shoulders. He glanced up at Thalia, who was almost to the top of the hill. Her face was bright red and drenched in sweat.
    “Oh . . . it’s hard to say,” Sisyphus said. “Never seen him before. He carried a long package all wrapped up in black cloth. Skis, maybe? A shovel? Maybe if you wait here, I could go look for him. . . .”
    “What did you tell him?” I demanded.
    “Can’t remember.”
    Nico drew his sword. The Stygian iron was so cold it steamed in the hot dry air of Punishment. “Try harder.”
    The old man winced. “What kind of person carries a sword like that?”
    “A son of Hades,” Nico said. “Now answer me!”
    The color drained from Sisyphus’s face. “I told him to talk to Melinoe! She always has a way out!”
    Nico lowered his sword. I could tell the name Melinoe bothered him.
    “Are you crazy?” he said. “That’s suicide!”
    The old man shrugged. “I’ve cheated death before. I could do it again.”
    “What did this demigod look like?”
    “Um . . . he had a nose,” Sisyphus said. “A mouth. And one eye and—”
    “One eye?” I interrupted. “Did he have an eye patch?”
    “Oh . . . maybe,” Sisyphus said. “He had hair on his head. And—” He gasped and looked over my shoulder. “There he is!”
    We fell for it.
    As soon as we turned, Sisyphus took off down the hill. “I’m free! I’m free! I’m—ACK!” Ten feet from the hill, he hit the end of his invisible leash and fell on his back. Nico and I grabbed his arms and hauled him up the hill.
    “Curse you!” He let loose with bad words in Ancient Greek, Latin, English, French, and several other languages I didn’t recognize. “I’ll never help you! Go to Hades!”
    “Already there,” Nico muttered.
    “Incoming!” Thalia shouted.
    I looked up and might have used a few cuss words myself. The boulder was bouncing straight