[8] Percy Jackson, Annabeth Chase, and Thalia Grace infiltrate the West Hall boarding school in Bar Harbor, Maine, to escort the siblings, Bianca and Nico di Angelo, to Camp Half-Blood.

They travel to Cloudcroft, New Mexico, where Grover senses the missing god Pan, who sends the Erymanthian Boar to help the group escape the spartoi.

Bianca, regretting her choice to leave Nico, tries to take a figurine from the junkyard for her brother, awakening a prototype of Talos, giving her life to destroy it.

The survivors sullenly travel to Hoover Dam, where Percy encounters Bessie, as well as Rachel Elizabeth Dare, a mortal who can see through the Mist, providing him an escape route by distracting the spartoi.

After destroying Thorn, Percy sends Grover back to Camp Half-Blood with Bessie, sacrificing the lion pelt to his father, Poseidon, for his friend's safe passage.

Percy, Zoë, and Thalia turn to Annabeth's father, Frederick Chase, for help, borrowing his car to reach Mount Othrys.

Reaching the peak of Mount Othrys, the group finds Artemis holding up the sky, a role that Annabeth was also subjected to, explaining the true nature of Percy's dreams.

Frederick flies to the rescue, piloting a Sopwith Camel, the half-bloods escaping to a nearby airfield where Zoë dies of her wounds, transformed into a new constellation by Artemis called the "Huntress".

Children's Literature, which commended the book's fast pace and humor, wrote, "Readers will relate to good natured Percy, the protagonist.

"[3] School Library Journal praised the "adventurous" plot as well as the book's appeal: "Teachers will cheer for Percy Jackson and the Olympians as they inspire students to embrace Greek mythology and score the ultimate Herculean challenge: getting kids to read.

"[10] Booklist's starred review approved of the novel's humor, action, and plotting: "The Percy Jackson & the Olympians series is built around a terrific idea—that the half-mortal offspring of Greek gods live among us, playing out struggles of mythic scale—and Riordan takes it from strength to strength with this exciting installment, adding even more depth to the characters and story arc while retaining its predecessors' nonstop laughs and action.

"[11] The Titan's Curse received several literature-related awards, including: number one The New York Times children's series best seller[6][7] and Book Sense Top Ten Summer Pick for 2007.