Ugh, why did I read this book at night? Guess because it was too addictive to put down, too powerful that it's worth a night sleep. But I half regret for reading this till the very end, it was shockingly disturbing and probably will haunt me for the rest of my life. 
 At first picking this up, I thought it would be some bromance adventure of surviving on an island. When the element of a "beast" was inserted to the story, things become more interesting - we finally got some action and mystery here! However, as the story progressed, I was shock how the boys can deprived their innocent nature and sink so low to the primitive condition, up to the point where they murdered a naive boy. 
 This story is about children and written for high schoolers, yet I think one needs a stronger mind to handle this: the terrible, dark things lurking in society and the savage demons dwelled within us, ready to succumb us into monsters. Both environment and inherent attributes play an important role in the crisis, and probably will forever echoes through civilization. 
 The prose is quite different, though I don't really feel that extreme intrigue by it. Most importantly are the allegories and metaphors building up and the construction of characters. So if you are looking for some fun adventure and a grand, epic quest, don't pick up this psychological horror.