Cas tilted his head slightly, his interest piqued. "I hadn't realized. I'd assumed 'Forbidden Forest' was meant literally." Giant spiders were certainly right up Sam and Dean's alley--unnatural, dangerous and morally unambiguous--and he wouldn't mind testing himself against such a creature either. "It might prove a worthwhile diversion." It certainly had to be better than sitting around waiting for Dean's restlessness to get the better of his common sense again...