Arthur, High King of BritainNo one believed that he could make it there and back again alive, so when a boy sets out to hike across the sea bed at low tide to an island not too far offshore, he is determined to prove a point. A short doze in the sunshine on the island and a fast moving fog, however, leaves him in dire straits. Trapped on a sandbank, he fears for his life as the sea closes in all around him. He is a strong swimmer, but the sea current is certain to drag him down