Sasquatch and the Green Sash is at once a translation and adaptation of the medieval English poem Sir Gawain and the Green Knight, from a time when parts of English culture were closer to Old Norse roots.
Novelist Henderson has chosen to Canadianize the original, setting it among the Dene of Nahanni National Park in the NWT. This new setting is darker, colder, and sub-arctic with the "ominous green and violet and pink of Aurora Borealis," and the additional dimension of the ancient Green Man's origins as Al Khidr, vizier of Alexander the Great.