Dogs of the Drowned City, book 3 : The Return
Dayna Lorentz2012

The heart-pounding conclusion to the DOGS OF THE DROWNED CITY trilogy brings the dogs home -- but can they go back to being pets?
Shep and his pack have survived a terrible storm and fought off a pack of vicious wild dogs. Now the dog pack must face their greatest challenge yet: finding their way back to their families.
Now that the humans have returned to the city, Shep knows he wants to find his boy. But there are so many other dogs to help, and so many dangers along the way. Worst of all is Shep's fear -- now that he's learned to live Outside, will he be able to find happiness again as a pet?