Lament of The Frontier Guard

It's twenty years after the Great Pandemic, a new virus that destroyed the brain in the late 2020s. The Isle of Wight shut itself off right at the start. It is the last bastion of the old world as it was before the disease, protecting its frontiers from the crazed 'Frenzies' on the mainland by any force necessary. However, it's an isolated world with no imports, no internet connectivity. That means everything to do with money has gone. No cell phones. No GPS. No tea, coffee, cotton, synthetic fibre. No more petrol or diesel or gas. Then one day, Nat, a young frontier guard is abducted from the beach by two women and a man. Nat is taken to a rugged community on the mainland run by a research scientist and his adopted daughter, Freya. The frontier guard controller, Edwin, begins to question the type of society that has grown up on the island, with its 'navy' consisting of an escaped American guided missile destroyer, and patrol boats with steel rams to run down any boat that tries to approach the island. Who runs things on the island and how? Can Nat be rescued, or will he bring back the virus and destroy the island? It's a fast moving story, full of action, as well as speculation on a world devoid of so many familiar things.