Describe a mysterious figure who is always seen lurking in the shadows, never revealing their true identity or intentions

Describe a mysterious figure who is always seen lurking in the shadows, never revealing their true identity or intentions. They are known to appear unexpectedly and disappear without a trace, leaving behind an air of mystery and unease. Despite their elusive nature, there are whispers among the townspeople about their potential connection to supernatural occurrences and dark magic. Some believe they are a harbinger of doom, while others see them as a guardian watching over the town from the shadows. Their presence is both feared and revered, and many wonder what secrets they hold within the darkness that surrounds them.