Wilbur

• Friendly talking unicorn first encountered in a swamp while the party traveled away from Bone Speaker Village
• Cheerful, conversational, and surprisingly casual about impossible things
• Spoke Common and could converse clearly with the party
• Enjoyed honey-oat rations
• Opened a portal to the The Infinite Staircase
• Guided the party into Mount Celestia and onward toward divine realms
• Suggested Mount Celestia as the place to find truly masterful builders
• Appeared to be a benevolent celestial guide with unusual freedom of movement between realms
• Fell into the River Styx during the descent toward Carceri
• Survived being pulled from the Styx, but lost his memory, identity, and portal magic
• Was left as a hollow, confused remnant of himself after the river stripped away what he had been