Rick Riordan

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

Los mitos vikingos son reales. Los dioses de Asgard están preparándose para la gran guerra. Trols, gigantes y criaturas horrendas se entrenan para el Tagnarok, el fin del mundo. Magnus tendrá que viajar por los nuevo mundos en busca de la única arma que puede detener el Ragnarok --una espada legendaria perdida hace miles de años-- y en el camino tendrá que tomar la más dificil de las decisiones. Porque a veces, para salvarse, es necesario morir. Magnus...

After a summer spent trying to prevent a catastrophic war among the Greek gods, Percy Jackson finds his seventh-grade school year unnervingly quiet. His biggest problem is dealing with his new friend, Tyson-a six foot three, mentally challenged homeless kid who follows Percy everywhere.

The demigods must stop the impending war between the camps while also making sure that Gaia does not awaken.

The demigods from the prophecy must work together to seal the Puertas de la Muerte and help Percy and Annabeth escape the underworld.

After learning that he is the son of a mortal woman and the god of the sea, twelve-year-old Percy is sent to a summer camp for demigods like himself, and joins his new friends on a quest to prevent a war between the gods.

The long-awaited prophecy surrounding Percy Jackson's sixteenth birthday unfolds as he leads an army of young demigods to stop Cronos in his advance on New York City, while the Olympians struggle to contain the rampaging monster, Tif?n.

Carter Kane and his sister must prevent the chaos snake Apofis from breaking free in a few days' time or the world will come to an end.

Jason, Piper, and Leo, three students from a detention school find themselves at Campamento Mestizo, where they learn that they are demigods and begin a quest.

Brilliant Egyptologist Dr. Julius Kane accidentally unleashes the Egyptian god Set, who banishes the doctor to oblivion and forces his two children to embark on a dangerous journey, bringing them closer to the truth about their family and its links to a secret order that has existed since the time of the pharaohs.