Children will delight in reading about Baba and her pet cow, Betsy, together with their young friends as they all go about their daily farm chores. Baba's mom entrusts her with the key to the farmhouse, and Baba is very excited about such a grown-up responsibility. But when they got back home, she couldn't find it! OH NO! What happened to the key? Did she lose it while they were feeding the cows? Collecting duck eggs? Baba and Betsy and the kids have a fun day and the mystery of the missing key is eventually solved!