What to do when you encounter Smaug on the road?

[What to do when you encounter Smaug on the road?]

Thanks for the input and the link!  I've messaged them!  Thanks!

[What to do when you encounter Smaug on the road?]

Is there anyone who can answer this question?  Does the battle go to the final space?  Do we just pass Smaug by?  Do we count the space he's on?  Do we move him aside and allow the Dwarves to get the assets underneath him?

[What to do when you encounter Smaug on the road?]

Here's a question I haven't seen asked here, and I can't find the answer in the rules…

 

When travelling on the fourth leg of the journey, we encountered this situation:

 

So…  What happens when Bilbo lands on the Smaug-filled space?  The rules don't state anything on it.  The only thing I found was on BoardGameGeek from someone who translated a French set of rules that stated the battle then takes place, skipping any further character advancement.  If that's the case, why isn't it stated anywhere else? 

Is that how it's supposed to be played?  Help!