Slenderman was walking around his forest when he came across two children playing tag. He watched them for a few seconds before deciding that they weren't human, after the youngest girl jumped down from a 25 meter high tree without breaking anything and the oldest levitated a tree trunk out of the way. So that raised the question. Who or what were they?

It took them a few seconds to see him even though he was right in front of them, as they were searching the ground for something. When they straightened up, instead of being scared they just titled their heads in unison, studying him. "Are you Jack Skellington?" the youngest asked. Slenderman was taken aback. "I'm sorry?" "You know, from Nightmare before Christmas?" when he didn't answer the oldest started singing. "Boys and girls of every age, wouldn't you like to hear something strange? Come with us and you will see, this, our town of Halloween," Slenderman suddenly understood. Sally had mentioned the movie once. "No, I am not," he replied.