The Black Bullet

Sean O’Brien series book #4


Glenda Lawson believes her husband was the only U.S. serviceman shot and killed on American soil during World War II. But in 1945, investigators ruled that Billy Lawson died in a “mugging turned ugly.”
Sean O’Brien is learning the ropes of commercial fishing when he gets his anchor caught on something underwater. He discovers a German U-boat partially buried in sand, and inside is a frightening cargo.
The media pick up the story, and a 35-year-old woman who has a haunting tale, visits O’Brien. Her grandfather, Billy Lawson, was fishing one night on a Florida beach when he saw something very disturbing.
The last thing Sean O’Brien wants is to investigate a decades old murder. But Billy Lawson’s granddaughter and his cancer-stricken widow are desperate for closure. For O’Brien to bring it to them he has to pry the lid off a secret buried with the Manhattan Project. It’s information that got Billy Lawson killed, and O’Brien soon learns the old murder and his new discovery at the bottom of the sea are inextricably knotted. O’Brien is thrust into a world where nothing is as it appears, and everything is riding on a secret Billy Lawson took to his grave.


“You know the current book you’re reading has to be “great” when you get home from work, postpone chores and pick up your Kindle to continue reading where you left off the night before. That’s the way it happened for me with The Black Bullet.”

– John Podlaski (Goodreads reviewer)

“Very well written. Couldn’t put it down. This would make a great movie.”

– Rachel Carson (Amazon reviewer)

“An “edge-of-your seat” story. I kept trying to read faster to figure out what would happen next.”

– Mary Martin (Goodreads reviewer)

“I love books with ties to historical events. This book was full of intrigue, suspense and heart- pounding action. Sean O’Brien is a great leading man. He reminds me of Dirk Pitt from the Clive Cussler books. I would definitely read this author again.”

– Lisa M. Zatezalo (Amazon reviewer)