Walking to Aldebaran

I'M LOST. I'M SCARED. AND THERE'S SOMETHING HORRIBLE IN HERE. My name is Gary Rendell. I'm an astronaut. When they asked me as a kid what I wanted to be when I grew up, I said, "astronaut, please!" I dreamed astronaut, I worked astronaut, I studied astronaut. I got lucky; when a probe exploring the Oort Cloud found a strange alien rock and an international team of scientists was put together to go and look at it, I made the draw. I got even luckier. When disaster hit and our team was split up, scattered through the endless cold tunnels, I somehow survived. Now I'm lost, and alone, and scared, and there's something horrible in here. Lucky me. Lucky, lucky, lucky. "It seems I've been having all kinds of luck with author-narrated audiobooks lately, because this was Adrian Tchaikovsky gave a superb performance on this one." --- Bibliosanctum