If Castiel had already been in a foul mood before, it was nothing compared to the mood he was in ever since the attack at the inn. His brother had been injured. His nephews had engaged Dick Roman. Viktoria was distressed. Another girl had been added to the list of those missing, there had been others injured, and Castiel felt as if he was going to explode. He wanted to destroy everything that got in his way. He wanted to make Everett a crater to try and get rid of Dick, but he couldn't admit it. He'd never admit it, but it didn't mean that the temptation was going away. His guilt and responsibility over this entire situation was colliding hard and fast with his rage and helplessness, and the combination was reaching dangerous proportions. What would his siblings say? What would Father say?
It should concern him that he was so apathetic about those things. It should concern him that he was so blinded by his need to FIX THIS that he didn't care about what he needed to do. He didn't care what sources he was using. He didn't care what his own personal outcome would be after this as long as Dick Roman and the rest of his army were banished again.
After retrieving the dirt and blood that Destiny needed, he approached her cabin swiftly. Everything about him announced the ticking time bomb he was becoming, but he didn't care. It wasn't a secret. He just wished he could explode and take the Leviathans with him.
Her question was answered silently as he held up a glass container with the contents that she needed. Something tugged at him from within, but he ignored it altogether. He just wanted to finish this. He needed to finish this and make it right.