Something was approaching the burrow. Something deadly. Something that made Sylvan's fur bristle with fear ...Knowing their lives are under threat, Sylvan and his brother and sisters have no choice but to abandon their burrow for ever. Together they set out on an epic journey along the Great River; but with dangers lurking at every turn, will they ever find a safe place to call home? Adventurous, exciting, and bursting with charming illustrations - this is a book you'll want to treasure for ever.