While spiriting two new half-bloods off to safety, Percy, along with his powerful demigod allies, his best friend Grover, and his trusty bronze sword, must rescue the goddess Artemis when she mysteriously vanishes while hunting a monster rumored to be powerful enough to destroy Olympus. 75,000 first printing.

When the goddess Artemis goes missing, she is believed to have been kidnapped.And now it's up to Percy and his friends to find out what happened. Who is powerful enough to kidnap a goddess? They must find Artemis before the winter solstice, when her influence on the Olympian Council could swing an important vote on the war with the titans. Not only that, but first Percy will have to solve the mystery of a rare monster that Artemis was hunting when she disappeared -- a monster rumored to be so powerful it could destroy Olympus forever.

When the goddess Artemis goes missing, she is believed to have been kidnapped.And now it's up to Percy and his friends to find out what happened. Who is powerful enough to kidnap a goddess? They must find Artemis before the winter solstice, when her influence on the Olympian Council could swing an important vote on the war with the titans. Not only that, but first Percy will have to solve the mystery of a rare monster that Artemis was hunting when she disappeared -- a monster rumored to be so powerful it could destroy Olympus forever.

When the goddess Artemis disappears while hunting a rare, ancient monster, a group of her followers joins Percy and his friends in an attempt to find and rescue her before the winter solstice, when her influence is needed to sway the Olympian Council regarding the war with the Titans.