Rick Riordan

When Apophis, the chaos snake, threatens to plunge the world into eternal darkness, siblings Carter and Sadie Kane plan to use an ancient spell to destroy the snake, but first must rely on the murderous ghost of a powerful magician.

"Grace is the last matriarch of the Cahills, the world's most powerful family. Everyone from Marie Curie to Harry Houdini is related to the Cahills, yet the source of the family's power is lost. 39 Clues hidden around the world will reveal the family's secret, but no one has been able to assemble them. Now the clues race is on, and siblings Amy and Dan must decide what's important: hunting clues or uncovering what really happened to their parents."--...

After discovering a secret that makes him question the honor of being the son of Poseidon, demi-god Percy Jackson journeys into the Sea of Monsters in an attempt to save Camp Half-Blood.

Los tripulantes del Argo II han salido victoriosos de sus misiones, pero están lejos de derrotar a Gea, la madre Tierra. Ella ha conseguido alzar a todos sus gigantes y planea sacrificar a dos semidioses en la festividad de Spes: necesita su sangre, la sangre del Olimpo, para despertar. Por otro lado, la legión romana del Campamento Júpiter, liderada por Octavio, está cada día más cerca del Campamento...

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.

Twelve-year-old Aru stretches the truth to fit in at her private school, but when she is dared to prove an ancient lamp is cursed, she inadvertently frees an ancient demon.

Reformed criminal Ralph Arguello suddenly finds himself at the top of a list of suspects when his wife, homicide detective Ana DeLeon, is shot, and is forced to turn fugitive to find the real triggerman and clear his name.

Enjoying his honeymoon at a Gulf Coast island resort, Tres Navarre finds his peaceful sojourn turning deadly when a U.S. Marshal is found murdered, the island is wracked by a hurricane, and he discovers that a desperate fugitive killer is on the island.

The disappearance of the goddess Artemisa while out hunting a rare, ancient monster, prompts a group of her followers to join 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.