Tara Thornton has problems. The first occurred when she jokingly summoned Candyman. The second occurred when Candyman's arrival revealed she was part fairy and could hear vampire thoughts. The third occurred when Eric, Bill and a few others, were suddenly drawn to her like they never had been before. And lastly, Candyman himself.
An unexplained phenomenon takes Michonne to an alternate reality, where the Governor has two eyes, Rick is wearing an eyepatch and more than a few dead people are very much alive.
In the sequel to 'Blood of Dragons', Cersei and Margaery use the Shadows against Stannis and Melisandre to take power. But as the co-reign causes trouble for Tyrion, Sansa, Jaime, Brienne and even Joffrey, Jon Snow discovers a secret that could destroy them all.
The castaways find disturbing evidence that Ericka Tiffany Smith attempted to return and rescue them, before being felled by some virus. The decision to return to civilization in her boat vs. staying behind until it is known that they won't infect mankind, divides the group. Throw in an alien who wants to study mankind, disguised as one of them, and the group is in for trouble.