This is the last book in the Hunger Games trilogy. I'm not sure I can say a terribly huge amount without spoilering the series, but suffice to say it's now about a full-scale revolution. I think it actually carries it off rather well. There is much in the world background that still doesn't make sense if you think about it too much. I found the Capitol's defense system particularly nonsensical. However, most of the characters behaved like actual people, and the plot tries to make it clear War Is Not Fun, even compared to the Hunger Games themselves. Katniss's assigned role is basically to produce propaganda for the rebels, her magical powers are slightly limited, even if she manages to continually survive remarkable odds, most characters have at least some ambiguity, and people you care about die. A decent ending to a decent-enough series.