Not sure I agree with everyone who thinks Durkon is in a bad spot. He's got smoke for cover, an astronomical armor class
and, no doubt, plenty of healing left. Not to mention plot armor against Tarquin specifically (as mentioned earlier in the thread). Even without the plot armor, I'd be surprised if Durkon couldn't go at least a few rounds with Tarquin before being beaten down -- plenty of time for the Roy to drop the next shoe. And Roy's shoes appear to be iron combat boots just now.
Let's see, if I were Roy, what would I pull out next? Time for the bag of tricks?