Not posible I think... maybe (but so far I am not!) you can later on in the game go back... but I'm afraid not ...
If you discover something more, but you're already in Brocken valley, but not so far, you can make a choise to begin back...
Is it, for example, because of the Illusionist? (who can change your face or name or the colour of your hair?). In that case, later, when you have your Battle Tower, there is also an Illusionist to your disposel
The most important things in Farglow you have ... yes, most surtainly!
