Its basically a spy thriller.
Commander Bellamy has been assigned to find the witnesses to a hot air balloon crash. All he had to do was to find who those people were and report there whereabouts. What he didn't know that the witnesses came out to be all from different countries and they disappeared without a trace.
But he proved to be the best in the job and eventually found out each one of them. As the story unfolds, the balloon becomes a flying saucer and with few more page turnings, all the dirty secrets of the organisation is revealed. But wait, there is more to it.
This mission could cost him his life and he wisely escapes the traps laid. There is enough twists to keep you glued to it. And at some point I could have gave this book a 5 star, only if I hadn't read the last 5 pages. The ending was boring.
It was unexpected but you would expect the unexpected in a thriller but towards the end, there was no thrill. But while you're completely engrossed in it, you won't like to leave the book until finished.