I am a huge fan of fiction of the "Age of Sail". C.S. Forester's Horatio Hornblower, Alexander Kent's Richard Bolitho, Patrick O'Brien's Jack Aubrey (author of Master and Commander) and my second favourite after Hornblower, Dudley Pope's Lord Ramage. I have them all.
My favourite Ramage novel is "Ramage's Diamond". Ramage is sent off from Barbados to Martinique in a lone frigate to blockade the French island of Martinique. He finds the island full of privateer ships and discovers that a large French relief convoy is due any day. The "diamond" in the title is actually not a diamond, it is a rock off the coast of Martinique, that creates a narrow channel that arriving ships must navigate or risk being swept out into the Caribbean by adverse currents. Ramage makes full use of the Diamond. I won't provide any more spoilers.
Why am I posting this on a philatelic site? Because I got this Maximum Card in a collection today and had to share.
Diamond Rock (and the channel in question):
The cover of my copy of "Ramage's Diamond" (several different editions with different cover art are in print).
Roy