I have this book, brother. Like Ravenhill writes in the foreward, it IS a volcano! I actually quoted from it recently in a discussion over "Christian" rock. I think Wilkerson is right on with all his convictions. I think he's right also about the "Babylonian idiot box" (or TV for those who haven't read the book). According to Wilkerson, America will be destroyed in one hour by a hydrogen holocaust sent by Russia. Lots of scoffers wrote this prophecy off when the Iron Curtain fell, but Russia is still dangerously viable and if she teams up with China, the USA is toast. But God is going to bring down the bloody USA no matter what (even Ravenhill said back in '84 that we're living on borrowed time. God has ALREADY judged us; nothing will turn it back). This book is a spooky, acerbic read. I do not reject Wilkerson's prophecies; I believe God speaks to him, and has set him up as a watchman over this nation. His ministry had the full endorsement from Leonard Ravenhill, who considered him a "New Testament prophet."
I recommend this book if you haven't read it. It's a scorcher, a dire "last call" trumpet blast before God sends a foreign nation to obliterate the USA. I'm pretty sure it's still in print, unlike most of Wilkerson's books from the early to mid 80's.
Brother Paul