Bow Wow (Bowser and Birdie Series #3)

From the time that he had first found, himself alone with them, Oliver had felt sure that the animals could come alive again if they wished. That was one blowy afternoon about a week after his father had been made night engineer and nobody had come into the Museum for several hours.
Oliver had been sitting for some time in front of the Buffalo case, wondering what might be at the other end of the trail. The cows that stood midway in it had such agoinglook. He was sure it must lead, past the …