“What magic is so powerful that it can drive two women to the edge of the world?” Wonce asks. She and Carcer interpret from the mural that Jocasta was betrayed and the other woman took the sword for herself. When Jocasta says a single word—Perpetua—the villains realize that it’s the name of the woman, who was buried above Jocasta’s empty tomb in the cemetery for traitorous assassins. They retrieve the blade and head to the area where children are “thrown away” to a life on the streets, intending to summon the dragon—but nothing happens. The sword’s hilt has been swapped out.
The Watch are out of leads, until retired Sergeant Swires (no relation to the novel watchman of the same name), sends them a lead from Twilight Canyons, where he now lives. Through Carrot’s continued use of real detective work (mainly looking at actual files for information), he realizes that Perpetua is the one who put Jocasta in Twilight Canyons, leaving her with a cane. When the Watch interprets the mural, they see it differently: they see two women traveling the world, seeing all its wonders, even as they run from the assassins pursuing them. The missing hilt, they realize, is the handle of Jocasta’s cane, which she entrusted to Swires once she stopped walking. Sure that Carcer and Wonce will realize their mistake, Vimes makes a plan to trap the two, battling over the sword. When Swires begins to raise an objection, Vimes interrupts, standing his ground, insisting that the others follow HIS plan for once instead of going off on their own.
But of course, things don’t go as planned. When Vimes and Carcer begin to battle (at the same time that Wonce and Sybil face off), the magical security system traps the two pairs of combatants, locking them in a dance number (to the disconcerting accompaniment of Wham’s “Wake Me up Before You Go-Go”) the ends with Carcer being teleported elsewhere and Wonce losing the sword to Sybil and retreating. With the sword and hilt now in the possession of the Watch, Vimes has Jocasta place her hands on the hilt as they put it back together, only for the sword—Wayne, stage name Gawain—to inform them that it doesn’t remember how to control the dragon. It does, however, reveal that only lovers can hear its voice (to the resounding protests of all the Watch members who aren’t Cheery, who seems to view herself as a lover).
The Watch brings Jocasta to Unseen University in an attempt to restore her memory of the sword’s abilities. Meanwhile, Carcer is in the interdimensional space of the auditors, a group of seemingly omniscient and extremely powerful beings who support order and science—and none of that dream or hope nonsense—who view Carcer’s dimension’s Watch, who are beginning to believe in themselves, as a cosmic threat. They send him back, saying it’s his last chance—and he and Wonce enlist the disgraced head of the Thieves’ Guild to steal the sword.
The episode features a number of nuggets for Pratchett fans. Early on, Vimes, irritated that Sybil has taken matters into her own hands instead of letting him do his job, gives her a rousing rendition of the “Captain Sam Vimes Boots Theory on Socioeconomic Unfairness,” including this gem: