The escorting would go completely uneventful, and the Quartet would explain (as Miss Abigail was further escorted into Oakstowns' little central castle) that she should send the Starmetal to a 'Harold The Blacksmith' in Coalstrike. Afterwards, they'd find themselves going back towards the road... However, you'd all get an idea. This 'Nawar's flamesword, no one here is absolutely sure how to operate such a piece of kit. They could pawn it for a few months and return to it, after doing some questing and asking Joshua how to handle these strange eastern blades. Especially how to properly handle one when it could sear your fingers off. Or, they could also take it to an enchanter so they could get a better idea on just what the hell it's capable of. Who knows, maybe it's not [i]just[/i] a flaming sword? He could go invisible, perhaps it has something else up its' sleeve as well?

The Pawn idea would also give them some money to work with, they'd have to pay it off to get their sword back (and if they miss it, they likely lose the sword forever), but still, it'd give them valuable funds for repairs and minor replacements. Maybe some potions, or re-forgings, even.
Sadly, on the road, Alexander looked as much as he could, but alas; he couldn't find this little 'cache' Nawar mentioned. It's hopefully the other way, then.