The two of them follow the goat Amaltheia to an abandoned house, only to get trapped inside by the living curtains and a trio of impervious Leucrotae who have the ability to mimic sound and voices.

They meet the house's sole occupant, Halcyon "Hal" Green, a prophetic, desolate demigod son of Apollo.

Hal gives Luke his diary as well as a dagger while Thalia creates Roman fire, the only thing that can kill the Leucrotae.

Upon his friends Jason Grace and Piper McLean coming to check on him, he reveals that due to the misplaced syncopator, the Argo II is in danger of exploding in one hour.

The part, and its backup, are within an animated drawer named Buford who ran away after Leo accidentally wiped him down with Windex instead of Pledge.

While chasing Buford in the woods, Leo, Jason, and Piper immediately come into conflict with the maenads, the maniac followers of Dionysus, the god of Wine.

Knowing that they cannot kill them, as that would risk Dionysus cursing them, Jason chases after Buford while Leo and Piper lead the maenads back to Bunker 9 and use Hephaestus' golden cage to entrap them.

The rest of Hephaestus Cabin celebrate Argo II's completion while Chiron and Argus ship the maenads to Atlantic City.

This story was written by Rick Riordan's son Haley(who Percy Jackson is based on) and marked his debut as a professional writer.

Later, he is greeted by Ms. Lamia, who had recently set up one of his speeches, but learns too late that she is, in fact, the daughter of Hecate who is after Alabaster, her brother.