The Sea of Adventure (Adventure Series)

Enid Blyton’s classic adventure series fantastically repackaged for a new generation of readers. When Bill takes Philip, Dinah, Lucy-Ann and Jack on a mysterious trip to the desolate northern isles, everything looks set for an exciting time. But then Bill is kidnapped and the children, marooned far from the mainland, find themselves playing a dangerous game of hide-and-seek with an unknown enemy.