It was preceded by the Percy Jackson & the Olympians series, The book is the first within the Percy Jackson universe to use Riordan's new style of writing, third person narration, where the point of view switches between the main characters: Jason, Piper, and Leo.
Highlight('comment_body_usertext')" class="small Text" href="#comment_form" Proathlete16 wrote: "Percy and Annabeth all the way!!!!
\"\n\n Just to point this o..."\n\n' $('comment_body_usertext').value;new Effect.
Highlight('comment_body_usertext')" class="small Text" href="#comment_form" ♫Ñádïra *Mischief Managed! *♫ wrote: "Percy ♦ Annabeth ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥"\n\n' $('comment_body_usertext').value;new Effect.
The plot of the Heroes of Olympus is centered around a prophecy, introduced in The Last Olympian, that predicted seven demigods would unite to protect the earth from Gaea.
Demigods from both the Greek camp, Camp Half-Blood, and a newfound Roman camp, Camp Jupiter, work together to save the world from being destroyed by Gaea.