The 2nd Book in the 'The Song of Ice and Fire' Series. The 1st book sets the scene in the 7 Kingdoms with challengers to the throne. A Clash of Kings is what it says and is an awesome read, developing characters and interweaving their paths intelligently.
I have just finished reading the 4th Book (Storm of Swords: Blood & Gold) and I am absolutely hooked. They really do get so gripping, I am scoring this 5 stars because they are all equally excellent, but now so much has happened it is captivating to read on.
Hopefully one day this series will be finished and made into a film epic like Lord of the Rings. I may implode if that happens because it is simply awesome.