As far as I know, Lord Manderley is going to kill Davos to get his son back, but that hasn't happened yet. Davos arrives by boat on the island of Sweetsister, having been abandoned by Salladhor Saan who is fed up because half his ships have sunk in storms in service to Stannis who does not pay his bills.
It's a bit of a dump: the lord's castle has a leaky roof and he can't afford proper lighting. Davos just wants to be sent on his way to White Harbor to have a chat with Manderley about maybe helping Stannis, but Lord Godric doesn't want to be seen to be helping Stannis. They come up with the rather obvious idea of just not mentioning that Davos was ever there.
During this conversation we learn that Stannis is pretty desperate at this point for someone, *anyone*, to bend their knee. Preferably someone with some gold. Godric also reckons Manderley's son is already dead, killed by Freys, but I seem to remember jaime rescuing him from Harenhall. Despite this, Wyman and Freys are making marriage pacts, which doesn't make much sense on the face of it. In general, if while reading ASoIaF I notice I am confused, it is a sign that I do not have complete information. Either I've forgotten it, or misread it, or GRRM hasn't told me yet.
Oh, we also learn that Jon Snow's mum is the daughter of a fisherman who gave him a lift from Sweetsister to the Eyrie to visit Jon Arryn, who he's named after. So there's that mystery solved, then. It's not the most earth-shattering revelation, though.
