The actual altar for Hades has been destroyed to make room for the Doors of Death. Once they get there, Jason Grace promotes Frank Zhang to praetor while Nico summons the army of Roman ghosts, who then fight against all the monsters that had come from Tartarus via the Doors of Death. He also asks that she not tell the others, as it will only worry them. While trying to reach the House of Hades in Greece, Nico di Angelo explains to Hazel that there is an object inside the temple that only she can move and it will pose as one of their great challenges. Hades, the god who the temple is dedicated to. With Percy and Annabeth trapped in Tartarus, the remaining demigods plan on flying to the House of Hades aboard the Argo II and defeat the forces of Gaea to save Annabeth and Percy. Instead he says he won't leave her and tells Nico that they will meet all of them on the other side of the Doors of Death. They are pulled into the pit, but Percy manages to grab hold of a ledge to keep them both from falling in but he couldn't pull them both up.

In an attempt to save Annabeth, Percy lunges for her but realizes he cannot cut the silk from Annabeth's ankle as he cannot hold onto Annabeth and his sword at the same time. Hazel Levesque, who realizes that her ankle was tangled in spider silk, desperately shouts for the others to help.

Once Annabeth Chase is reunited with her friends and Percy Jackson after recovering the Athena Parthenos, she is dragged into the pit by spider silk or web leftover from her recent fight with Arachne. Nico di Angelo explains that the other side of the Doors of Death are in Tartarus.

Heroes of olympus the house of hades