"Well bargained and done." Gladius retrieves the funds, and carefully pockets the stone while putting the ring on. He goes in search of glasses or goggles that grant the ability to see at night - perhaps someplace run by a gnome?

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Without a source of Identify, I have no way to know if Gladius is actually getting what he pays for (like with the anklet). Ah well.

Sheet updated. Still have 7k gp.