How can I access an array stored in a dictionary?

Hi, I wanted to store some an array in a dictionary but I am having a little trouble understanding how to access it after it's in the dictionary without using a loop.

I have this as my dictionary:

private Dictionary dict = new Dictionary()
    {
        {"names", new string[] {"Joe","Bob","Billy", "Ned"}},
        {"Message","Hello!"}
    };

So if I try to get the length of the array for instance, it doesn't work:

Console.WriteLine(dict["names"].Length);

how can I access the properties of the array?

Also how would I access a single item by its index number? something like:

Console.WriteLine(dict["names"][2]);

Still learning C# so any help would be appreciated. Thanks!