User blog comment:Menara/The Son of Sobek: The official PJ and Kane Chronicles Crossover/@comment-5593616-20130515180205/@comment-5593616-20130516192712

^^I agree. It was too big a spoiler. And I don't think (if Annebeth had died) that Percy would get over her so quickly. Carter said he looks around seventeen so hypothetically Annebeth would have died less than a year ago.

P.S I know he won't kill them, which I think is to please the fans. It would be the biggest twist ever if one of them died.

P.P.S The fact that its a crossover isn't what makes it seem like fanfiction (to me anyway.) Its just that the style of writing seems a lot like something a fan would have written.