The book raises questions about what real friendship and self-sacrifice are, questions of mutual understanding and trust between children and parents, and of course, the question of the price of human life ...What should you do if, during Halloween, you witnessed a murder? In addition, it turns out that you knew the murdered. And yet, you have identified one of the killers, and he enters your house? And, to everything else, did you lose evidence of your presence at the scene?The answers to all these controversial questions are to be decided by the inseparable four high school students. The trouble is that they cannot consult with anyone. Will Evil conquer? ..