Add functionality to the partial Class

namespace PartialClassMethod
{
    partial class Magic
    {
        private int toads;
        private int spiders;

        public Magic()
        {
            toads = 0;
            spiders = 0;
        }

        public int Toads
        {
            get { return toads; }
            set { toads = value; }
        }
        public int Spiders
        {
            get { return spiders; }
            set { spiders = value; }
        }

        public Magic(int t, int s)
        {
            Toads = t;
            Spiders = s;
        }

        public void doMagic()
        {
            Console.WriteLine("Poof!");
        }

        partial void Print(int t, int s); //Defining partial method

        public void PrintPets(int t, int s)
        {
            Print(t, s);
        }
    }

    partial class Magic
    {
        partial void Print(int t, int s) //Implementing partial method
        {
            Console.WriteLine("Partial class Toads= {0}\nPartial class Spiders= {1}", t, s);
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            Magic yourMagic = new Magic();
            Console.WriteLine("Spiders = {0} and Toads = {1}", yourMagic.Spiders, yourMagic.Toads);
            Magic mymagic = new Magic(3, 5);
            mymagic.doMagic();
            Console.WriteLine("Spiders = {0} and Toads = {1}\n", mymagic.Spiders, mymagic.Toads);

            Magic partialMagic = new Magic();
            partialMagic.PrintPets(10, 20);
            Console.ReadKey();
        }
    }
}