This is a charming and beautifully illustrated animal fable. It comes from the popular Silver Penny series. It is suitable for children aged 3 to 6. When a thirsty fox sees some tasty-looking grapes, he's delighted. But he just can't reach them, no matter how high he jumps or how hard he tries. Bitterly disappointed, he walks off, calling them 'sour'. Aesop's charming animal fable gently teaches children a timeless and very human lesson.