The other mother..

This is the other mother, also known as The Beldam. You and your parents have had a heated argument, and you have been sent to your room. You are now grounded. You huff and you puff, but it does no good. Then, you notice something on the bottom of your wall... It looks like a small catflap that had just magically appeared out of nowhere. You realise it opens... There you see a magical, colourful looking portal – something you could go through. You squeeze your head through the door, just managing to get your whole body to fit inside, and start to crawl. The portal feels endless until you reach the other world. And find her.