Maya squeaks loudly (sorry, McCree's ears) at the noise, and lets him pull her along, scrambling to keep up with him.

"But.... where is "out", exactly...?"

This mine hasn't exactly been forthcoming with the entrances and exits. That being said, as they run, there's an opening up ahead, potentially taking them out to freedom --- but as they run towards it, the ground underneath them erupts, and out comes the basilisk.

Maya's eyes flicker between the creature and McCree. "What do we do?!"