Have you changed all of your passwords yet? If you’ve been paying attention to the news, social media, etc., you’re probably nodding silently (and groaning at the amount of work involved). If you wonder why I’m asking, go here.

As a result of the Heartbleed bug, the Internet is abuzz with security talk this week. After all, for two years we’ve been thinking that our personal information—our secret information—has been safe and secure. (Unless you’re one of those paranoid types who doesn’t believe the Internet will ever be safe. Or are they prophetic? Hard to say now.)

Turns out we were wrong. Someone, somewhere might have been keeping secret files about our, well, secret information. And it could be exposed at great personal cost.

This sounds really familiar, doesn’t it? And I don’t mean because of the whole Target thing during the holidays. Infamous FBI boss J. Edgar Hoover kept his own secrets as well as secret files on just about everyone. They stayed secret until long after his death.

But what if they hadn’t? How would history have developed then?

USA Today bestselling author Kristine Kathryn Rusch originally looked at this what-if scenario in her one of her most acclaimed stories, “G-Men.” And now, she has turned “G-Men” into a full-fledged novel called The Enemy Within.

Enemy Within ebook cover lighter web

Here’s the synopsis:

February, 1964: Two men die in a squalid alley in a bad neighborhood.  New York Homicide Detective Seamus O’Reilly receives the shock of his life when he looks at the men’s identification: J. Edgar Hoover, the famous, tyrannical director of the FBI, and his number one assistant, Clyde Tolson.

O’Reilly teams up with FBI agent Frank Bryce to solve the second high-level assassination in only three months. Because in November of the previous year, someone assassinated President John F. Kennedy. The cop and the FBI agent must determine if the same shadowy organization committed all three murders. To do so, they must act quickly before some of the nation’s most powerful men—from Kennedy’s brother, Attorney General Robert F. Kennedy, to the President of the United States, Lyndon Baines Johnson—do something rash to keep Hoover’s secrets from ever becoming public.

I guarantee this book will keep you riveted. But don’t take my word for it.

RT Book Reviews calls it, “A dark, yet fascinating tale, The Enemy Within gives readers an intriguing look at what could have happened in 1964 New York.” Keith West at Adventures Fantastic says, “[Enemy Within] is a blend of mystery, political thriller, and alternate history. It was a compelling read I had trouble putting down. … This is one fans of political thrillers won’t want to miss.” And Dave Dickinson of Astroguyz says “Rusch weaves a convincing alternate history tale of ‘what ifs’ that interlaces with our own history of those troubled times. … Be sure to read Kristine Kathryn’s Rusch’s latest thriller The Enemy Within for non-stop political intrigue!”

Even if you’ve read “G-Men” (maybe especially if you’ve read “G-Men”), you’ll want to read The Enemy Within.

I can’t tell you why, though. Spoilers.

And nobody can make me give up that secret.

Allyson Longueira is publisher of WMG Publishing. She is an award-winning writer, editor and designer.