Elenora and Dominick Black's seventeenth birthday contained all of its usual excitement - mainly delicious, sugary cereal for dinner - until a strange box was delivered to their doorstep. With one soft touch to this simple wooden box, Elenora and Dominick Black plummeted into a world of darkness, demons, and Angels. They were dropped, quite literally, into Hell. The Down Below is an ancient world, one that crawls with every appalling creature ever thought of by man, and unknown to all but the Dark Angels who live there. It is Elenora and Dominick's birthright to become part of the Angels, those who defend Earth from Hell. Yet they cannot be fully-fledged Angels without being tested. After mere months of grueling training with dangerous weapons, scarily efficient teachers, stuck-up ice queens, unexpected attraction, and heart-stopping inner demons, they have to climb and survive the mountain - the heart of all fear. Leaving behind what had become their home and family, they set out to face the indescribable fears born of all mankind. Pushed to the limits of their physical strength, they are forced to question how deep their own beliefs run. But the mountain was not all they would have to defeat. Betrayal, love, and loyalty would leave them devastated, torn, and questioning everything they had ever stood for.