Marco Ferrante is a DevOps engineer, not a hero. At 2:47 a.m., running routine maintenance on a Nexus Technologies server, he finds a number that doesn't add up: a delta of just 0.3%. The kind of thing anyone else would let go. Marco doesn't let it go.

What he uncovers is a secret pipeline copying the private data of six hundred fifty million users in real time, feeding a shadow surveillance consortium with clients in eleven governments. Within days, a colleague vanishes, a black sedan starts showing up outside his house, and Marco and his wife, journalist Elena Marsh, are running, from Silicon Valley to the halls of Congress, chased by an enemy with thirty years of experience making inconvenient people disappear.

Some wires are exposed for a reason. Someone has to check them anyway. ZERO DAY is Book Two of the Technological Thriller Series, a novel about the price of noticing and the courage it takes not to look away.

"One three-in-the-morning night at a time."