Will one man’s search for his family save the world… or destroy it?

Sean Walsh is waiting for the air to clear after a nuclear war. As a gritty ex-cop with a military background, he knows he’s got what it takes to find his two missing sons in a post-apocalyptic world. When all his leads turn up dead ends, he’s got no choice but to join the new government as an agent. He hopes to leverage the position to get one step closer to his children…

In exchange for the latest in spy technology, Walsh must return to the violent life he thought he’d left behind. As he begins the search for his kids, he has a lingering suspicion that his new girlfriend might have terrorist ties that could bring down more than the government. She might destroy the entire country…

Mad City is a gritty post-apocalyptic novel. If you like unforgettable stories, strong characters, and tech that would impress James Bond, then you’ll love the first book in Patrick O’Donnell’s Sean Walsh Post Apocalyptic Series.

Buy Mad City to survive the end of the world today!

***WARNING*** This book contains violence, sex, and vulgar language. If you are offended by any of these things, DO NOT BUY THIS BOOK!

"Spy, thriller, love story, true crime with a hint of zombies... what's not to love?"

"If you enjoy a book that takes you for a ride, buckle up and get ready!"

"A fast-paced, action-packed, end of the world as we know it, thriller. A retired Irish cop steps up and into a world of mayhem."

"O'Donnell does a great job crafting accurate real-life details in telling a compelling and suspenseful story."