Anton had been a soldier in an active war-zone too long to miss the slight disturbance, even while relaxed and not on guard. The fact that he couldn't immediately pinpoint the cause and the cause's location, however--only the effect--that was rather impressive.

"Oh dear," he said blandly with a disinterested glance into the basket before he leaned back in his chair and picked up his knitting needles. "I appear to be missing a pair of socks. Wherever might they have gone?"

Not that he was going to try terribly hard to determine which shadow had made the claim, anyway. That was what they were there for.