Two years have passed since Jim and Polly visited Gannets' Island and their lives have taken a turn for the better. The pirates are gone and the Unicorn has disappeared... All should be well but strange mists have been reported and ships have been attacked. Tensions are high and the Circle Sea is on the brink of war... Jim, Polly, Elizabeth and Mike must discover who is behind the attacks before it's too late but some old friends and enemies will make life very interesting... The second book in the Circle Sea stories is on the way... [The provisional title was 'The Phantom Raiders'...]