Hugo and his sister Poppy enjoy taking walks around the lake, but Hugo is always stopping to look for rubbish. When it starts to rain, Poppy wants him to hurry up and she can't see the importance of picking up rubbish. With pockets bulging, Hugo eventually sorts his 'treasure', puts it to good use, and convinces his sister of the importance of looking for litter. A beautifully illustrated, timely, and engaging story about the significance of looking after your environment and the small steps we can all take to achieve this.