I got a new Silmarillion book for Christmas, and I've been rereading it. Maybe it's because I've read it before, but I notice there are hints about what is going to happen in a later chapter.
Of course, if you pay attention to the Prophecy of the North (Doom of Mandos), you have an idea that things won't turn out well for the Noldor. But at one point Mandos states that Feanor will come to him soon, which can only mean one thing. And when describing the sons of Fingolfin, the text states that Fingon became "King of the Noldor in the north of the world." That implies Fingolfin won't come to a good end either. There are other such spoilers in the book.
How many of you noticed that reading the first time? Maybe I did and didn't let it bother me at the time.