Odin's Runestones

Origin
These stones were said to be carved by the Aesir god Odin after discovering the symbols by hanging from the World Tree Yggdrasil for nine days while impaled by his own spear. The god often consulted the runes for guidance.

Effects
When removed from the bag with the intent to tell the future, they will predict it with perfect accuracy. Will not function properly, if at all, unless the user can only see out of one eye, and they do not appreciate being tricked.

Collection
These stones were collected after their power lashed out at their unfortunate owner, violently tearing out his eye and cursing him. The guidebook to reading them, though not an artifact itself, was brought along.