Sage is on it's way. Ragz, I also agree you need to claim your space and tell it to leave.
I would also like to suggest that you make some "Monster Spray" for Gyda. It's just some scented water (try a bit of vanilla or lavender in water and shake) in a spray bottle, but if she feels uneasy, she is at the age that a bottle of this will empower her and help take fear away. She can "spray away" anything that frightens her and this often helps children feel safer.