Yay at last I've read beyond where the TV series left off, and what a read! I'm a big fan of this whole series and will make an effort to read the next one before Season 4 starts.
Another excellent outing for Starks, Lannisters, Targaryans and Baratheons with big chunks of story ark concentrating on Tyrion and Jaime for the Lannisters, and Sansa, Arya and Jon Snow for the Starks with a bit of Bran on the side. There's also a chunk following Dani – the last Targaryan – and her dragons plus extra viewpoint chapters from Davos Seaworth, not my favourite character, though he has his moments, but he's the one narrating Stannis Baratheon's arc. Sam Tarly also takes up the narrative – a delightful character.
So the whole book (parts one and two) covers everything from Jaime Lannister's journey back to King's Landing with Brienne of Tarth – and some new and interesting insights into the Kingslayer, Arya's continuing journey to find her mother, the much talked of Red Wedding, but I'll not include spoilers in case you're one of the three people left in the world who doesn't know what happens, and a great YES! (airpunch) moment when a hated character gets his comeuppance. But Winterfell, oh dear, what's to become of you?
We meet some new characters, the Queen of Thorns and the Red Viper of Dorne, and keep an eye on some old ones, such as the Hound. I do hope we've not seen the last of Gendry, but the book Gendry and the TV Gendry are now on different paths. There are some surprises, and people you didn't expect to see die do die and there's a big reveal right at the end which makes you want to reach for the next volume.
Highly recommended, but start at the beginning with Game of Thrones. This is not something to pick up part way through.