Derek didn't say anything further, just turned his back and headed to the main house.
It was early yet, even with Allison's interruption, he hadn't been gone as long as he usually was during his morning runs. Isaac was probably awake, but likely showering, or in the kitchen if he wasn't in his room already.
He entered Stiles' room without knocking and found the human still asleep. He sighed and rubbed his face before walking to the bed, shaking the boy awake. "Get up."