Survivors (Erin Hunter). Original series

In the aftermath of the Big Growl that destroyed their city, Bella and the Leashed Dogs have finally settled in the forest where there is plenty of clean water and prey. But a fierce Pack of Wild Dogs has laid claim to the land, and their menacing Alpha will stop at nothing to ensure that it is his alone. Lucky has taught the Leashed Dogs much about survival since they lost their longpaws, and they refuse to back down. Bella hatches an intricate...

"Lucky and the rest of his Pack encounter another group of dogs that has survived the Big Growl--and these new dogs may be their most dangerous enemies yet"--

"Lucky and the dogs of the Wild Pack must fight tooth and claw to survive the storm of dogs--the terrifying battle that has been haunting Lucky's dreams"--