Derek was upset, barely holding it together, really. But he wasn't so out of it that he didn't hear Stiles call to him, twice. He'd ignored the first one, but the second one was more desperate--and closer.
His slave was an idiot. Well meaning, maybe, but an idiot.
He turned around, the snow obscured the teenager as he squinted through the swirling flakes. He swallowed, then made his way back to Stiles, gripping his upper arm tightly. "I'm not...now's not a good time, Stiles," he warned. "I can't right now."