Dany had one of the former slaves beheaded after he killed someone awaiting trial for murder. the people didn't like that. this was after she was warned about how her Brother, the mad king dished out his "justice"I haven't watched this season yet but...
1. In the books, Robb Stark meets with all his generals before he attends the wedding. He notes that his wife isn't pregnant yet, and therefore doesn't have an heir (she's not pregnant in the books). So he has all his major bannerman sign a decree for who his heir will be, if he dies without a kid. It's not shown who he picked but it's almost certainly Jon.
Stannis offers to make Jon a Stark, as in the show. I won't go into anymore details on that.
2. Sansa stays in the Vale with LF in the book. In the books Cersei sends a fake Arya to the Boltons. Basically the Boltons and Cersei know she's not really Arya, but they use her to help the Boltons secure the north, since the northern lords are completely loyal to the Starks. Theon is used to confirm her identity. In reality she's just one of Sansa's friends who came to King's Landing with her.
what happened with Dany?
in the books, are the religious zealots out of control?