The remaining three of the Falkirk group are questioned, but where is Lucy? Simon explores the camp and discovers her in the sick bay. Lucy and Simon are apprehended by the stewards but escape and after eventually discovering the secret purpose of ASTRID Island, they stumble upon a chilling new sighting.

Lucy despairs as she and Harry feel that they are losing their battle against time. Despite his own doubts Harry urges Lucy on and they escape - only to discover that the stewards have set their own friends to find them. Lying low, Harry spots the small boat he saw before they came to the island and they wade out to meet it.