Stiles stepped in closer, serious, he was actually serious about what he was asking. But then he had to know that he was probably asking the one person who would actually do what he had to do to save as many as he could. Oh he'd hate himself after, another name to add to the list of people he had failed. But he'd do it. Because Stiles had already been through enough, they all had. No one should have to go through the things they did. And yet life just kept throwing hurdles at them.
"Yeah. I will. You know I will but you need to say it right? To hear me say it. Some kind of reassurance, is that it?" And if nothing else Derek understood those nightmares. Blood on his hands. Yeah Derek knew that one well, though if it was as bad as all that for Stiles then he suspected that there really was more to it than just nightmares.
"I have no idea what's doing this to you, if its that, if its Lucifer. But whatever it is you have to trust that I'll do whatever I can to stop it, okay?" It might not have been much but it would have to do for now.