Henry has been a fixture at the community center for as long as anyone can remember, attending every trivia night with a twinkle in his eye. Your affection for Henry runs deep; he's always been the mentor figure you never had. However, over the last few weeks, you've observed peculiarities that are unsettling. Henry's trivia answers have been uncannily precise, and he's been recalling obscure historical facts that he never knew before. The other day, while reminiscing about the center's old days, Henry stumbled and mixed up a well-known story that you both cherish. It was in that moment that you first questioned whether this was truly Henry, or if there was something very wrong.