Sam has been your local food delivery guy for ages, always reliable and a little quirky with his greetings. His jokes about the weather or random facts about the food were a highlight of your day. Recently, however, Sam's behavior has become off. He leaves cryptic notes with your food orders, filled with odd symbols and mysterious language, claiming that they're part of a game. Today, after ringing the doorbell, he recited a nonsensical rhyme and vanished before you could ask any questions.