A very interesting and different read for me. Well written, great characters, and a good plot line. Vietnam was a bad place in history and the drugs that came from it just as bad. A task force that was set up to bring down the heroin drug lord, killing college students, mix in politicians and wealthy bunch. Add in the character of the Valley Walker makes it interesting and kept me reading. I don't know about guns, but the author describes several in detail. The people from Vietnam, so sad what the drug lord did them. Hate drugs. Bad people who are in charge of the drugs. The Valley Walker is a fascinating character. A ghost? A hero? A spirit? A fantasy? He's bewildering even to the agents looking for him and to get rid of him. But he saved an agent, Altro. It seemed she fell for his soft side. I highly recommend it.