Sigil-Eaten Navigator

 is a potential First Officer crew member.

Character description
"More Sigil than man, now. But he sets a true course"

Obtaining
The  can be is promoted by following the Sigil-Ridden Navigator's Storylet:
 * Speak to him costing 1 x SS Supplies.png Supply to start his story.
 * Take him to Chapel of Lights where you'll need
 * 1 x SS appallingsecretsmall.png Menaces: Unaccountably Peckish (you can acquire it there) and 2 x SS_crewsmall.png Crew, OR
 * 2 x SS Live Specimen.png Live Specimen
 * Take him to Frostfound where you'll need 5 x SS Supplies.png Supplies and 1 x SS guisemalesmall.png Outlandish Artefact, as well as SS Menaces Wounds.png Menaces: Wounds ≤ 1 (because it's going to hurt).
 * Next, you'll need A Doctor Aboard, and Something Awaits You before you can speak to him again.
 * Then, off to Avid Horizon with a SS Strategic Information.png Strategic Information.
 * Lastly, he will request to be left at Codex or The Empire of Hands.
 * Choosing Codex gets you a SS Searing Enigma.png Searing Enigma
 * Empire of Hands gets you +2 SS mirrorssmall.png Mirrors and 2 x SS chartsmall.png Revelatory Charts
 * Instead, take him to The Kingeater's Castle if you have ≥ 3 x SS appallingsecretsmall.png Menaces: Unaccountably Peckish to promote him to the Sigil-Eaten Navigator.