Apparently, Stiles thought sassing a killer was a great idea.

Getting taken hostage had been bad, finding out that they'd taken Stiles too was worse, but watching the boy be tormented was the worst.

Derek knew why Stiles had opened his mouth - Their captors had just intended to kill Derek but Stiles couldn't have that. So, the brunette started throwing snarky insults until attention was no longer the alpha.

Derek wished they'd just killed him. He strained against his chains, desperate and snarling, but he couldn't reach Stiles and hearing the boy's pained whimpers felt like his greatest failure yet.