And it was worth it. Unlike "The Last Raven", I think this novel has stood the test of time. The basic tenet of the story, a defecting Soviet scientist, is obviously anachronistic but the elements of the chase in first the urban environment of Stockholm and then the forests of rural Sweden could have been written today with some other plot device. The chases and the various twists and turns in the plot are well done and well written. This isn't an "SAS is best; outwitting the poor Russians at every turn" type novel; this is more a story of two teams of special forces, one British, one Russian, trying to outwit each other; sometimes succeeding, sometimes failing. The characters are believable, they develop throughout the story and, sometimes, they even die.
I enjoyed picking up "That Last Mountain" again. To the best of my knowledge, it is the only Terence Strong book I have ever read but it won't be the last. I see that Strong is still alive, well and writing and that a new novel, "Some Unholy War" is due to be released in July next year. I have it on backorder already. In the meantime, there are another dozen or so Strong novels out there waiting to be read. I'll have a go at a few of them and report back here.