This is the final story in the series about the terrorist Benjamin Adnam.
HMS Unseen is one of the most efficient, lethal submarines ever built, but suddenly on a training mission off the Coast of England it vanishes.
The the unthinkable happens Planes begin being blown out of the skies all across the ocean.
I'm a Patrick Robinson fan, I've read almost all of his submarine novels. In my opinion this was the worst of them all. Way to much dwaddle in wothless detail about situations that were way off the edges of the storyline. I was tempted to put the book down half way through and add it to the trade list. I only finished it because I've read so many of the authors other books and enjoyed them. The others are great, this one missed the mark.
Few authors annoy me as much as Patrick Robinson does. The man can write, and writes well, that isn't the problem. The problem with a Patrick Robinson story is often lack of proper research. The man seems to be simply incapable of actually learning anything about the things he includes in his books! He shoots down aircraft with anti-ship missiles, has terrorists operate nuclear submarines with little or no training and generally seems to just not care that things are impossible. You are left with the feeling that he spends his research time simply browsing the Internet looking for "cool" sounding weapons and ideas, then throws them willy-nilly into the books he writes, without having any clue whatsoever to what their actual purpose and function might be.