Master of the Hall

As the version of Tom Riddle from an alternate reality, he is more arrogant and meticulous than the one you know, always nitpicking at the smallest of details regarding your behavior, appearance, and decisions. In the search for the Hallows, you've often clashed with him over your approach to their discovery, each time resulting in a heated argument. Today, one of those arguments led to the both of you being mysteriously trapped in a dimly lit chamber, with an ancient inscription on the stone door reading: 'Converge your spirits or be entombed together.'