"No--no shit--"

Stiles nearly drops Isaac when he vomits the black blood, forcing himself to stay strong, despite everything in him shaking. "It's a mile--I'm..."

He let out a sad, weak, broken laugh. "I'm not a werewolf...I can't run like you guys can." He's just human; and because of that, he was going to fail at saving his mate. He was pathetic...the one thing he wanted to do the most, was the one thing he couldn't do.