That's right, that had been his opening. "What's this?" he asked, brandishing the puffskein at Jon in a nominally accusing manner. "Have you seen this? Do you know what it's doing? What's happened to it?"
Hopefully the answer would be something like 'it fell into a cauldron of unidentified potion and it's been this way ever since,' but with everything else going on around here lately, he wasn't holding his breath.