Bourdain
"We were confidantes. He was a Frenchman and - in his day - a member of the revolutionaries' Calendar Council. He wrote pamphlets and placed bombs. I could not say which were more incendiary."[1]

A former member of the Calendar Council,[1] London's anarchist revolutionaries, Bourdain saw the Seven's quest as a way to help sick people from the Surface, and his skills as a writer allowed him to rally many, many, men and women to the cause.[2] After his party's defeat, however, he fled to Frostfound, and was never seen again. Several years later, Mariam tried to rescue him, but her agents were attacked by Wreckers and failed in their search.[1]
Ice
"Is he trying to say something? There is no sound. He repeats the gesture. Does he mean-? You lean in and breathe on the ice, fogging it. Bourdain gives a minuscule smile. Then he raises a finger and begins to draw a message in the fog from the other side.
He writes backwards, which necessitates some deciphering. "I NEVER LEFT.""[3]

Bourdain failed in the Ruby Room of Frostfound, and his visage was trapped in the frozen wall. The Wreckers carved the ice into a slab, and gave it to the Fair King as a mirror.[2][4]
This predicament did not impede his cause at all. He can communicate by writing on the mirror, and he's still somehow able to scheme against the Presbyterate via Kingeater's Castle. One of his pawns is the Gnomic Gallivant, who was tasked with murdering members of the College of Mortality around the Unterzee.[3][5]
- ↑ 1.0 1.1 1.2 The Seven Statues, Sunless Sea
- ↑ 2.0 2.1 The Man in the Mirror, Sunless Sea
- ↑ 3.0 3.1 Bourdain in Ice, Sunless Sea
- ↑ An Audience with the King, Sunless Sea "The Fair King considers your countenance for a long while. "Very well." It takes a dozen hardy wreckers to free the slab of ice. The reflection within it [...] watches the work with curiosity. "Calved from Frostfound," the King says. "Keep it cold.""
- ↑ Stand at the altar with the Gnomic Gallivant, Sunless Sea