My rescue operation goes very wrong -- The vice principal gets a missile launcher -- Bianca di Angelo makes a choice -- Thalia torches New England -- I place an underwater phone call -- An old dead friend comes to visit -- Everybody hates me but the horse -- I make a dangerous promise -- I learn how to grow zombies -- I break a few rocket ships -- Grover gets a Lamborghini -- I go snowboarding with a pig -- We visit the junkyard of the Gods -- I have a dam problem -- I wrestle Santa's evil twin -- We meet the dragon of eternal bad breath -- I put on a few million extra pounds -- A friend says good-bye -- The Gods vote how to kill us -- I get a new enemy for Christmas.

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.