Mist and Rain in the Lost Valley

Mist and Rain live amongst a herd consisting of several species. Days go by, quiet and pleasant. But Rain's curiosity will lead them to discover a strange valley. They will meet nice creatures quite different from themselves... and some fearsome predators.
The story explores the feeling of security, knowing that the parent and the herd will always be there to protect the young stegosaurus and that he too can protect smaller animals.