Arya finally makes it to the rebel base. Lord Beric, Thoros and others debate what to do with the captured Hound, for he is the Lannister man Arya saw out of the window. I start to like the Hound a little more during this exchange since he rightfully points out that he's hardly responsible for killing perpetrated by other Lannisters. But then Arya reminds me that he happily murdered her friend Mycah after she got into an argument with Joffrey. Damn you GRRM, with your momentarily sympathetic bad guys.
Anyway, since these rebels are all Lord of Light worshippers it's trial by combat. Which the hound wins despite getting badly burnt (really didn't need the image of flesh sloughing off an arm, there, GRRM). But Beric is still not dead even after being cloven nearly in two by a sword. So it's almost definitely magic now and not just a rumour put about that he's unkillable. Wow.