"I heard this story," Mr. Gilby began, "from a one-eyed Northman I met while pursuing
my researches in Moscow. He had experienced a vision, he said, of a great tree
spanning the heavens, the earth,
and the underworld. He called it Yggdrasil, the
World-Tree of his ancestors.
In this vision of his - I know not whether it was a dream, or a visitation, or indeed anything about its source - he was ascending the tree, stopping briefly at each place it touched to learn its secrets and come to an understanding of its proper place in the order of things. He went on for some time, describing each of the worlds believed to exist by the Northern peoples; though in truth, many of the details elude me. In any case, I am still in sporadic contact with this fellow. Though he may be quite mad, he has certainly assisted me with several conundrums that I have encountered. The man has vision."