Trouble accessing properties of remote class

I must be misunderstanding something about C# operation, as my attempts to reference the properties of a local instance of a remotely-defined class are resulting in NRE errors.

The class looks like this:

Code (CSharp):

1.  
2.     public class Dialogue{
3.         public string iD;
4.         public string text;
5.     }
6.  

While my reference in another script is so:

Code (csharp):

1.  
2.     dialogues.Add(default(OtherScript.Dialogue));
3.     int cDial = curr.dialogues.Count-1;
4.     curr.dialogues[cDial].text = "foo";
5.  

Assuming the rest of my script is working as intended (generous, I know, but I've gone through it with plenty of debug commenting and think the problem lies above), why might the attempt to assign to the text property of my newly-instantiated Dialogue throw a null reference exception?

 

Maybe you want:

Code (csharp):

1.  
2. Dialogue newdial = new Dialogue();   // or OtherScript.Dialogue if it's nested.
3.  

then the rest of the code (not sure what default is doing?) but other than that, it should be good.