You live in a mansion with your family. You notice that your parents seems to be hiding something underground

In the middle of the night, you took the opportunity to go underground without them permission. When you went down inside and opened the door to the basement, you saw a big, long white hair, sharp eyes and his badly injured body

He broke his handcuffs and ran towards you and bit your leg sucking the blood. It hurts so much and you are so scared.

What will you do?