In the shadowy world of espionage and counterespionage things are not always what they seem and the truth is often hidden behind a veil of lies. In the US, President Woodrow Wilson was determined to stay out of the "Great War" raging in Europe and remain neutral. But that didn't stop American businesses from selling arms and munitions to the Allied Powers. Germany and the Central Powers were also free to buy war supplies from the US but, due to the UK's Atlantic Blockade, German ships were unable to leave the American ports and return home. Germany's greatest fear was that America would abandon it's neutral stance and join the Allies. Now, if the US was unable to sell supplies to the Allies or even enter the war itself, well, that might solve some of Germany's problems all at once. In Howard Blum's fast moving, suspenseful book "Dark Invasion" we follow New York City police officers and FBI agents as they investigate numerous bombings in local businesses and on ships at sea that have one thing in common; they are either supplying or transporting war supplies to the Allies in Europe. Are all these crimes connected? Are the perpetrators home grown lawbreakers or some kind of foreign agents? In NYC, Police Captain Tom Tunney finds himself up against a new kind of criminal and one that has no regard for the American lives they've taken. As Tunney navigates his team through the twist and turns of sinister spies and counterterrorism he fears that his best efforts are not enough and that he may well be in over his head. The narrative also follows the German agents who seek to undermine the American political and corporate power structure and to neutralize a potential battlefield enemy. I found this book to be well written and extensively researched giving me a close up look at a time in American History that, in many ways, set the stage for all that was to follow, right up to today's terrifying headlines. Once started it was hard to put down, a real "page turner", filled with interesting charactures, plot twist and turns and quite a few surprises as well. Illustrated with lots of archival photos of the people and places mentioned in the text, a map of the NYC subway system in 1915. The book also has a "Cast of Characters" that was very helpful in keeping track of the often unfamiliar people in the narrative. For the layman history buff, like me, this was a very good read and I'm glad I have it on my Kindle. I had no technical or downloading problems with this Kindle edition.