The House of Hades

Heroes of Olympus

Content Ratings

Mild Romance

Percy and Annabeth's relationship sustains them through the horrors of Tartarus; the novel also includes Nico di Angelo's acknowledgment of his feelings for Percy, handled with compassion and emotional authenticity; romantic content remains appropriate for the age group.

Moderate Themes

The novel confronts psychological horror, the importance of empathy for those who are different, Nico's experience of feeling ashamed of his feelings, and the courage required to survive an environment that strips away all hope.

Moderate Violence

Tartarus is portrayed as a nightmarish realm of monsters and ancient horrors; combat is more viscerally threatening than in previous books; the emotional toll on Percy and Annabeth is sustained throughout.

Synopsis

Percy and Annabeth fight to survive Tartarus—the darkest and most dangerous realm in Greek mythology—while their friends aboard the Argo II race to open the Doors of Death from the mortal side. The darkest installment in the Heroes of Olympus series, requiring Riordan to take his characters to genuinely horrifying places while also including the series' most significant LGBTQIA+ storyline.