Dean had a rucksack full of explosives slung over his shoulder, and he was setting them down as they went, planning to detonate them once they were out. Thankfully, this place allowed him the chance to make a remote detonator for them.
Dean gave Ruby a grin, sure she was enjoying this whole night half as much as he and Sam. She didn't seem the type to spend much time scraping around underground doing stupid stuff like this.
"Red? Left or right? Got any idea where the majority of these jackasses are?" After all, she was the sniffer hound here.