She's a hacker with a past. He's the billionaire she wasn't supposed to fall for. Elizabeth wants one thing: a clean start. A temporary security audit job at Knight Enterprises should be safe-until she meets Matteo. The quiet man she thought worked in maintenance turns out to be someone completely different. Moody. Quiet. And a Knight. Working together in the company's tech lab ignites an attraction neither of them can ignore. But the deeper Elizabeth digs into the company's systems, the more the team starts looking at her like she's the threat. And the closer she gets to Matteo-and the secrets inside Knight Enterprises-the more dangerous their connection becomes. Because some systems aren't the only things being hacked. And some hearts aren't meant to stay protected. MATTEO is the fifth book in the KNIGHT EMPIRE steamy billionaire romance series. An addictive slow-burn romance featuring found family, wounded hearts, and unforgettable chemistry.