The Witch's cat is used in the Underground Pass quest. It must be recovered from the maze of walkways deep inside the dungeon west of West Ardougne and then used as a distraction to allow the player to enter Kardia the witch's house and search a chest to find the Doll of iban.
You can take the cat out of the area by grabbing another one and keeping it with you. When dropping it though, it will always run away, essentially disappearing.
The cat can be spoken to if a catspeak amulet is equipped.
- The examine text "Curiosity has yet to kill this one..." refers to the idiom "Curiosity kills the cat."
- If you try and pick up another cat while you already have one in your inventory, you get the message: "It's not very nice to stuff a cat into a satchel...Two is just plain cruel!"
- You cannot use this cat on West Ardougne civilian to get death runes. They will say it is too old and has never seen the light of day and would not be good for catching mice.