Percy jackson and the olympians : the battle of the labyrinth / Rick Riordan

1. I battle the cheerleading squad -- 2. The underworld sends me a prank call -- 3. We play tag with Scorpions -- 4. Annabeth breaks the rules -- 5. Nico buys happy meals for the dead -- 6. We meet the God with two faces -- 7. Tyson leads a jailbreak -- 8. We visit the Demon Dude Ranch -- 9. I scoop poop --10. We play the game show of death -- 11. I set myself on fire -- 12. I take a permanent vacation -- 13. We hire a new guide --14. My brother duels me to the death -- 15. We steal some slightly used wings -- 16. I open a coffin -- 17. The lost God speaks -- 18. Grover causes a stampede -- 19. The council gets cloven -- 20. My birthday party takes a dark turn.

"Percy, Annabeth, Grover, and Tyson must enter the infamous Labyrinth to convince its ancient inventor Daedalus not to give Luke "Ariadne's string"—a tool that could help the enemy invade Camp Half Blood. Our fave heroes encounter more than a few monsters (as usual), and Percy even ends up on an island with Calypso, who falls in love with him. But we all know Percy and Annabeth are ~meant to be~, and he naturally leaves Calypso and finds his way back to camp. They enlist the help of Rachel, a human who can see through the mist and navigate the labyrinth. But they're too late: Daedalus has already helped Luke. "