适合水平：亲子阅读，蓝思值AD690L，母语国家孩子4年级第1个月读本（BL4.0）
适合年级：1-6年级


A young snail dreams of having the biggest house—or shell—in the world. Then one day, his wise father tells him the story of another snail with the same dream. He grew and grew, adding bright colors and beautiful designs, until he found that his house came at a terrible cost. The young snail decides that a small, easy-to-carry shell might be best for a life of adventure and exploration.