Violet's friend Viola has come to stay. When she climbs the tallest tree in the garden, dives into the lake and even does a tightrope walk on Spider's thread, the other Dewdrop Babies think she is very brave. But at bed-time they discover that she's not so brave after all because Viola is scared of the dark. The Dewdrop Babies gather round to make her feel better. They ask the glow worms to glow all night, they tuck Viola into her cosy bed, sing her a lullaby and read her a bed-time story and before long she is fast asleep.