'arya had always been harder to tame'

2

Yes, Arya thought. Yes, it’s you who ought to run, you and Lord Tywin and the Mountain and Ser Addam and Ser Amory and stupid Ser Lyonel whoever he is, all of you better run or my brother will kill you, he’s a Stark, he’s more wolf than man, and so am I.

6

And Arya, well, Arya had always been harder to tame…Ned’s visitors would oft mistake her for a stableboy if they rode into the yard unannounced. Arya was a trial, it must be said. Half a boy, half a wolf pup. Forbid her anything and it became her heart’s desire. She had Ned’s long face, and brown hair that always looked as though a bird had been nesting in it. She collected scabs as other girls collected dolls, and would say anything that came into her head.

Her soul is an empty vessel. Only Lannister blood can fill it.