A breathtaking picture book about the water cycle from Kate Greenaway Medal winner Grahame Baker-Smith Issac plays in his favorite pool on the mountainside. As rain starts to fall, he empties his little jar of water into the pool and races the sparkling streams as they tumble over waterfalls, rush through swollen rivers, and burst out into the vast open sea. Where will my little jar of water go now? Issac wonders. From the tiniest raindrop to the deepest ocean, this breathtaking celebration of the water cycle captures the remarkable movement of water across the earth in all its majesty.