Ira Levin's novel Rosemary's Baby explores that mind-boggling realm of the absolute darkness found in human nature. His depictions of evil are frighteningly real; even atheists may have trouble remaining in their state of disbelief in the good and evil supreme beings. This book is truly one that is nearly impossible to put down; it is extremely readable without seeming childish. Levin's ideas of good and evil are explained in a manner that is easy to understand, yet it is still perplexing to even the greatest of minds how such evil can be personified. Levin is truly a literary genius; this book proves it.