From the series: Sean O'Brien

INVISIBLE: A Sean O’Brien Novel

About

Sean O'Brien stops to help a young girl retrieve money she dropped in traffic. It's a brief encounter, but her story stays with him. Days later, he sees her face again—on the evening news. She's vanished.

As the case goes cold and authorities move on, Sean can't let it go. To find her, he must descend into the dark web and infiltrate a global criminal network where victims are bought and sold. Standing in his way is one of the most ruthless and calculating minds he's ever encountered.

Time is running out. The girl's life is now measured in days, and Sean must risk everything to bring her home.

A relentless crime thriller about one man's determination to save an innocent life from the darkest corners of humanity.

- A Sean O'Brien Thriller

Praise for this book

"For those of us who love kick-butt action, Sean O’Brien is the guy you want to follow. Uncompromising and vigilant Sean defends those who can’t defend themselves."

"Another wonderful book where you feel you know and care about the characters."

"The amount of research Tom Lowe does for each book is amazing. This time it was astounding. Sean O’Brien is one of my favorite characters ever."

"How do you spell perfection? I have had the pleasure of reading every Tom Lowe, Sean O’Brien novel. Each one has been a jewel in its own right . As of now, this is by far a step above them all."