In the third season of the popular drama series Lost, one of the most beloved characters, Charlie Pace, meets a tragic end. Charlie, a musician struggling with heroin addiction, dies while trying to help his friend Desmond communicate with a boat. His death is heart-wrenching, but it serves an important purpose in the overall story. Charlie's character arc showcases his kind-heartedness and loyalty, as he sacrifices himself for those he cares about. His final act of writing "Not Penny's Boat" before he dies becomes an unforgettable moment in the series. 

Charlie's death scene is significant because it highlights the show's theme of fate and destiny. He accepts that his death is part of his predetermined path, and he goes out by saving his friends. Before his demise, Charlie learns important information about the boat not being Penny's, which adds depth to his sacrifice. The survivors on the island are unaware of how long they will be stranded, making Charlie's death scene more poignant as it emphasizes the importance of their time together. 

Dominic Monaghan, the actor who portrayed Charlie, was happy to leave Lost as he wanted to pursue other roles and felt that his character's screen time had diminished.

After his departure from the show, Monaghan took on various TV and film projects. Despite Charlie's death, he continued to appear in the flash-sideways world in season 6 and in Hurley's mind. These appearances indicate that the characters will always be connected in some way, even after death. Charlie's death may be heartbreaking, but it serves as a pivotal moment in the series and contributes to the overall storyline and character development.