Ramage's Prize (Lord Ramage Series #5)

The West Indian bases are desperate: post vessels—a vital communications link between England and the West Indies in the war against France—are mysteriously disappearing and no packets have arrived with orders in months. Were the privateers out in full force again? Had Napoleon's navy a secret new weapon? Lieutenant Lord Nicholas Ramage sets out from Jamaica to discover what treachery is threatening to throw the British navy into chaos.