Professor Plum is a sweet, lovable kitty and would make a great family member and friend. Come see him at the Madison County Humane Society, fill out the adoption application and get approved to take me home. Adoption fee for cats is as follows: Cats and kittens under 7 years of age: $85; cats over 7 years of age: $65. This fee includes spaying/neutering, age appropriate vaccinations and dewormings (rabies vaccinations will be given to those 4 months and older.), FIV / FELV testing, microchip and 30 days of free pet insurance.