Why are the animals glum all day? It's because they think Mr Peek was talking to them when he said 'you're getting fat...you're wrinkly...you stink...' but it's all a misunderstanding. Mr Peek is really talking to himself, because he is upset that his jacket is too tight... but then it's all put right and as he goes round the zoo again, all the animals hear a much more positive message - but Mr Peek is oblivious to it all. This book has a lovely old-fashioned feel (it reminds me of my childhood books), with text that flows around the pictures, keeping the reader engrossed in the story.