The main RuneScape Wiki has an article on: Cat
The Old School RuneScape Wiki also has an article on Cat.

Nicknames None
Released 28 July 2003 (Update)
Quest item No
Members item Yes
Tradeable Yes
Equipable No
Stackable No
High alch 0gp
Low alch 0gp
Shop price Not sold
Sale price Cannot be sold
Examine looks like a healthy one

Cats are fully grown kittens. Their only use is to trade them for 25 death-runes (not 100 as in RuneScape 2) to civillians in West Ardougne. Once you have fully grown cats and only fully grown cats, you can purchase another kitten from Gertrude.

If a player uses their cat on a level 2 Rat the following message is displayed: "the cat pounces on the rat... ...and quickly gobbles it up it returns to your satchel licking it's paws".

During Underground Pass quest player distracts Kardia the Witch with a cat in order to obtain Old Journal and a Doll of Iban from witch's chest.

Cat (Underground Pass).png

Examine: She's sleeping..i think!

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