While mowing the front grass Dad uncovered a clock. It looked like the moon in a green sky. He dug it up and put it on the mantelpiece. Every Saturday at 10 o’clock it chimed twice reminding him to cut the grass. He told me that someone must have put it there a long time ago, as the clock was very old, probably before they had mowers. We wondered why. One Saturday the clock stopped chiming so Dad stopped mowing. In the grass a bluebell grew and every Saturday at 10 o’clock it chimed twice. Now we knew why.