Just. WOW. I cannot believe this is Starling's debut book. It's a masterpiece. Reading the summary, it sounds confusing and convoluted, but ends up anything but. The characters are phenomenal, even though there are only a few, the cave itself becomes a character. Just the right amount of suspense without being too much too fast, while managing to be slow enough to build up as well. Starling managed to strike a balance between psychological fear and the very real dangers then main character is faced with. Also, a nice long read, perfect length. BRAVO!