THE ORIGINAL HERO. A BRAND-NEW ADVENTURE.

Percy Jackson has saved the world multiple times - battling monsters, Titans, even death himself - so graduating high school should be a breeze, right?

Wrong. Percy needs three recommendation letters from the gods before his final year in high school comes to an end. And one thing Percy knows, the gods on Mount Olympus don't do anything for free.

To secure his second letter, Percy and his friends Annabeth and Grover agree to a new quest - pet-sitting for the goddess Hecate while she's away over Halloween. They just need to follow her simple rules:

1. Look after the pets like their lives depend on it (because they do)
2. Don't touch anything - especially Hecate's magic potions!
3. See points 1 and 2

But when Grover's curiosity gets the better of him, the trio find themselves with a giant goat, a destroyed house, and Hecate's (terrifying and potentially deadly) pets on the loose in New York City.

Now the trio have twenty-four hours to find the pets and restore the mansion to order - or face the full fury of Hecate and her horrifying three-heads.

Praise for Rick Riordan:

'Vastly entertaining' Independent
'The stuff of legends' Guardian

Other books and series by Rick Riordan:

Percy Jackson and The Olympians

Percy Jackson and the Lightning Thief (Book 1)
Percy Jackson and the Sea of Monsters (Book 2)
Percy Jackson and the Titan's Curse (Book 3)
Percy Jackson and the Battle of the Labyrinth (Book 4)
Percy Jackson and the Last Olympian (Book 5)
Percy Jackson and the Olympians: The Chalice of the Gods (book 6)
Percy Jackson and the Olympians: Wrath of the Triple Goddess (book 7)

The Kane Chronicles series
The Trials of Apollo series
The Heroes of Olympus series
The Camp Half-Blood series
The Magnus Chase Series

RICK RIORDAN(he/him), dubbed "storyteller of the gods" by Publishers Weekly, is the author of five New York Times number one bestselling series with millions of copies sold throughout the world. He is known for his Percy Jackson and the Olympians books, which bring Greek mythology to life for contemporary readers. The first book in the series, The Lightning Thief, has won numerous awards, and been adapted into a feature film, a graphic novel, a Broadway musical and an Emmy Award-winning live-action series on Disney+ that Rick cocreated and executive-produced. He lives in Boston, Massachusetts, with his wife and fellow executive producer, Becky.