Percy Jackson and the Titan's Curse

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.
Rick Riordan
Richard Russell Riordan Jr. (born June 5, 1964) is an American author. He is known for writing the Percy Jackson & the Olympians series, about a teenager named Percy Jackson who discovers he is a son of the Greek god Poseidon. Riordan's books have been translated into forty-two languages and sold more than thirty million copies in the US. 20th Century Fox adapted the first two books of his Percy Jackson series as part of a series of films. His books have spawned related media, such as graphic novels and short story collections.
Percy Jackson and the Olympians
Series contains 7 primary works and has 11 total works. Current series reading order on below.
Percy Jackson & the Olympians is a pentalogy of adventure and fantasy fiction books authored by Rick Riordan. The series consists of five books, as well as spin-off titles such as The Demigod Files and Demigods and Monsters. More than 20 million copies of the books have been sold in more than 10 countries. The Lightning Thief, the first book, is the basis of a film called Percy Jackson & the Olympians: The Lightning Thief, which was released in the United States and Canada on February 12, 2010.