He ceased his pacing when a tug came in the back of his mind, a warning that then thrilled down his back. The wards. Someone was near and probing the outer reaches of his safe zone.
"Who on earth...?"
There was no pause, no decision. It didn't matter who, or what, was out there. It was time to leave.
With a grunt of disapproval, he turned himself in a circle to Disapparate.