How do I stop my cat shredding my wallpaper?

Hi Alison

Hamish appears to be using the wallpaper as a place to mark, particularly as your other cat has used the same place.  Firstly put some of the shredded wallpaper onto the scratch post and place this in front of the bedroom door.  Secondly you need to protect the remaining wall paper, either blue tack on crinkled up silver foil or place some plastic sheeting up (the sort that normally goes under study room furniture to protect the carpet.  I have had other client's with the same problem and once we gave the cat an appropriate place to mark, with its preferred scratching material, then several locations can be offered this way and the cats tend to disregard the original place where they marked with their claws.

Good luck

Pippa