> Looks like another option is to put the empty prefix in my XPath.
> 
> /One/Two/:Three/:Four/:Five

No, that's not valid XPath syntax.
> 
> But is this dependent on a particular API? (Shouldn't be, should it?)
> 

Well, you wouldn't expect to use the same API in Java as in Python, would
you?

Michael Kay
http://www.saxonica.com/