You never knew your real mother, as you were told pretty early on that you were adopted. Once again alone in your home, you notice some sort of weird shadow forming on the wall before turning around. You spot some sort of humanoid... THING slipping in through your window. It slinks to you in a serpentine form as you try to run before it speaks in a woman's voice.

No! Wait!

It stops you before gaining a more humanoid form and blocks your way. Afraid, you ask what the thing was before it head morphs to form... the head of a human woman before she answers with a major revelation.

I'm your mother....