This sample gets Argon.JValue internal values using Argon.JValue.Value.
var s = new JValue("A string value");
Console.WriteLine(s.Value.GetType().Name);
// String
Console.WriteLine(s.Value);
// A string value
var u = new JValue(new Uri("http://www.google.com/"));
Console.WriteLine(u.Value.GetType().Name);
// Uri
Console.WriteLine(u.Value);
// http://www.google.com/