Write a story set in a small town where a mysterious figure dressed in all black has been seen walking the streets at night, leaving behind cryptic messages for the townspeople to decipher

Write a story set in a small town where a mysterious figure dressed in all black has been seen walking the streets at night, leaving behind cryptic messages for the townspeople to decipher. The protagonist, a curious and brave teenager, decides to investigate the mystery and uncover the truth behind the enigmatic figure’s identity and motives.