Vinata's seasons-old vanishing trick, finally reverse-engineered as a light-god worship loophole.
Rosetta reconstructs how Princess Vinata gets from her stronghold to Club Vanquisher undetected. A guard worships one of the light deities that grants Travel the Path and Welcome Home on conversion, then opens a Prospect Congregation — as simple as forming a party — and carries the sultana and the rest of the court along their own Bijou tendril into the god's temple, where they wait out Faction Wars.
Two objections nearly sink the theory. No one has ever seen a sign that the sultana worships a god, which implies the missing seventh guard is the real convert and stays behind in the temple; and if only one converts, how do all seven get in? The prospect loophole answers it. Edgar's Sense Movement readings of rising Bijou confirm a first-time worship is happening right now, narrowing the deity to Theia or Khepri — and with Theia sponsored, it has to be Khepri.
The mystery whose solution gives Carl a three-to-four-minute window to intercept the naga court.