"Don't worry Doctor, we're going to come back for the..." Rachel stops, cut off by that wail, more certain than ever that things really aren't right.<br/><br/>Rachel tosses down the frayed rope that used to have Maria attached to it and stalks over to the dangling climbing gear, intent on making sure all three of them get out of here. Rachel begins to clip herself into her harness, but all the while she's watching that hole in the ice, as well as the crevice she'd partially explored earlier.<br/><br/>"Whatever made that noise, it didn't sound human. Maybe this hole tapped into some kind of hidden ecosystem, like they find around vents on the ocean floor or even caves sometimes. Whatever it is, it's dangerous, we've got to get out of here for now, come back later with more firepower."