A Stark spy in the Lannister headquarters?

Swoop....away from the rain and tears of Winterfell, up to the frozen North on the far side of the Wall, where Jon and Ghost are trekking with the designerburberrystore Halfhand on his mission of treachery against Mance Rayder's wildings. Or rather, Jon is trekking -- Ghost, who's unbelievably massive, is more meandering around just in eyesight. Halfhand tells Jon wild things like Ghost can never really be known. He also tells us the Wildings sleep by day and hunt by night, but the rangers themselves can't because they don't know the territory and would fall into a crevasse and die. Also he says that they're at war with the North itself. And there's something about the death of a ranger is a gift to the people living south of the Wall. It's all a little confusing, but the burden of their conversation of is this: Halfhand: "We've got to find these goatf**kers before night fall." Off to Harrenhal, where Arya's still chief waitress at International House of Lannisters. Where the special of the day is bureaucrative screwups. Papa Lannister is furious because a missive describing his armies' plans was sent to a Lord loyal to Robb Stark, instead of the similarly-named lord loyal to the Lannisters. Arya gives away that she can read when Papa L. demands she bring a specfici book to him, and she neatly plucks it off the shelf before being told which one it is. The guy who failed to deliver the mail correctly is dismissed, and Papa jokes with Arya that she should devise their battle plans, what with her being able to read better burberry men shoes than his bannermen. And strange as it sounds, you can see there's a rapport here between Papa and Arya -- she smiles at him, and keeps grinning as she puts stuff away. Until a servant announces the arrival Lord Petyr Baelish....and Arya goes from grinning to ashen. HBO A Stark spy in the Lannister headquarters? As Baelish comes in, she does a funny dance to hide her face from him -- She serves Baelish wine from just behind his shoulder, serves Papa L. with her back turned. It's no good. Baelish twitches with recognition as Papa L. tells Arya to give Baelish more wine. And then Arya spills the drink on Baelish's lap -- which gives him an excuse to get a good look at her face. He doesn't say anything, though -- you can practically hear the cogs in his skull churning, as he thinks about what he should do with this info about Arya Stark's whereabouts, that he alone in the Seven Kingdom's possesses. Oh, also: Baelish tells Papa that the Tyrells are now without a leader, and they're rich and have food. And Margaery's ambitious. He'd like to ride down to Highgarden and set up a Lannister/Tyrell axis all himself. Back up to the North, where Halfhand and Jon ambush a wildling camp. They kill them all. Except one -- Jon can't kill the one he grabs when it turns out she's a girl, Ygritte. They question her a bit -- she says there are hundreds of thousands burberry best sunglasses beige 2012 fashion cheap for sale of wildlings beyond the pass -- and Halfhand then says she must be killed lest she give them away. Jon says he'll do it.