(Slenderman's POV)
13 years. It has been 13 long mortal years since I have seen my son and daughter. I never got to be there for their first steps or their first words. I missed so many precious moments with my son and daughter... all because of that wretched man... Standford Pines!

[Flashback]
Wandering around the forest was a very tall faceless man. You would know this man as the ever so popular Slenderman. He was pushing along a blue and pink stroller. The stroller was a click a part and click together stroller as of the fact that it was built for carrying two babies.

In the stroller sat two babies that looked very similar to one another. The only difference between the two was that one was a boy and the other was a girl. If you were to look at them you would think they were human. And the reason for that is because of the fact that their mother was in fact human. The two infants would never get to meet their mother due to the fact that she had died giving birth to the twins.

It didn't take Slenderman long to notice that a man was walking around his forest. The man had brown shaggy hair a tan jacket black jeans glasses and a red turtleneck sweater. Slenderman never liked it when people came this deep into the forest, this part of the forest belong to him and when ever people came this deep into the forest he would become very upset.

Slender man then hid his two children inside of an old abandoned truck before going after the stranger. Slenderman proceeded to chase the man throughout his forest. But for some reason this man was somehow able to outsmart the powerful Slenderman.

The man had hid behind an old abandoned truck, and that's when he heard it. The sound of two crying babies. Once he looked inside the truck he gasped at what he saw. Sitting inside the truck were two identical twins. The man could tell that the only difference between the two was that one was a female and the other was a male! But there was one other noticeable difference... unlike the little baby girl the baby boy had a birthmark on his forehead that resemble that of the Big Dipper.

The man took the two infants and ran out of the forest and tell he reached his home in gravity falls. As soon as he got there the man immediately gave his niece a call and ask her if she was willing to take in two infant babies and managed to explain how he found the two. Unfortunately for Slenderman that was the last he ever saw of his Son and daughter.
{Flashback over}

I growled in anger and frustration. One day. One day! I will find my children and end Standford pines's life! Mark my words Stanford pines! I'm coming for my children and I will end your life with no remorse or mercy!!!!