Six months ago Eric and Susan Hiscock returned to England. Nothing surprising in this-except that they had just sailed round the world in a 30ft. yacht. For three years Wanderer III had taken them to foreign ports-of-call, alone across the Atlantic, and through the Panama Canal. They were becalmed in the South Pacific, but from the drab skies of England they had arrived in a land of dreams-a tiny island paradise called Moorea.