PROLOGUE
Yap wriggled, yawning, and gave a small, excited whimper. His littermates were a jumble of warmth against him, all paws and muzzles and small, fast heartbeats. Clambering over him, Squeak stuck a paw in his eye; Yap shook his head and rolled over, making her fall off. She squeaked with indignation as always, so he licked her nose to show there were no hard feelings.
The Mother-Dog stood over