The prevailing theory around numbers from Nameless dreams goes that they are indeterminate, resolving only upon observation by a sapient. That’s usually Tach, or someone like him, in deep trance. The trance keeps your mind intact. Probably.
The people at the French Polar Institute, upon hiring the people Tach and Ashlock are impersonating, had a theory: that some of the Dumont d’Urville staff survived. This theory is hemorrhaging credence. Tach’s theory is that they should get the hell out of here.
Ashlock’s theory is that they must deliver their little number, like Tolkien’s ring, to the burning heart of the world.