Martin and Sylvia wake one morning to hear a clear sign that autumn has arrived: the honking of geese! Sylvia wonders if any geese have visited the little pond she had created in their backyard brook, but Martin is sure the geese have passed by. When they check, they find that the swollen brook has washed away the little pond as well as a series of precious fairy houses. They both set to work but cannot agree on how to proceed. Only a true collaboration solves the question of how to make a proper goose pond!