There's a point where a series becomes repetitive. Characters begin to remind you of other characters, story lines strike a familiar cord, and there's a pretty heavy sense of deja vu the whole time you're reading it. 
 This is why Shield of Winter gets only 3 stars. 
 Not a bad story at all, of course. There was a good dose of action, the outbreaks kept things moving when the romance couldn't. I think having two Psy as the main characters in the Psy/Changeling series was bound to have less oomph compared to a Psy/Wolf or Psy/Leopard pairing. Especially since the LAST book was the same scenario. But Vasic was fine and Ivy was fine. I didn't dislike them. I DID like the grandfather. I ALWAYS like seeing Judd again. I adored Rabbit, cuz I'm a dog person and I can identify. 
 Though I finished the book, it took me longer than Nalini Singh books used to. It's just... 
 The world-building is great and all of the impact the fall of Silence has had is interesting and all. It's just...I've got it already. The Psy are healing now. Good stuff. And now it's time for a fun Psy-Changeling story again! Where they tease and play and chase each other through the forest playing sneaky changeling games. Let's have less of the serious and more of the FUN!