Deep in the frozen north, facing the northern sea lies Corpsehaven a city built into a sheer cliff, a walled city that extends to the sea. This city is a silent place, filled with the dead and those that would consort with such creatures.
Basq doesn't exist. He occupies a point in space--a single X,Y,Z point in the Cartesian plane, but he's not made of anything. People looking at him see whatever they want to see. Or what he wants you to see. Usually a mix. Just the same, he cannot be hurt swords or arrows. Only things that deal damage to an area (fireballs, gases) can damage him. Or weapons that can cut through an infinitely small point.