Courtney took a step and immediately went into a slide. Time went into slow motion. My left hand still had a strong purchase on the rock and my right hand gripped the trekking pole that she was hanging on to. As her full weight started to load the system, she swung underneath me. The inertia was far greater than I was expecting and I felt the sharp pinch of fear throughout my body. I felt my hand slipping off the hold I had on the rock. I couldn’t let her go. Then I lost my grip on the rock and we started to slide. It was over. I knew in a matter of seconds we would be airborne, free falling 800+ feet to our deaths.