Operation: Midnight Books in Order
Part ofLinda Castillo Books in OrderBrowse the Operation: Midnight romantic suspense series by Linda Castillo, with all books in order, brief plot summaries, series background and help on where to begin.
Last updated: January 16, 2026
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Publication Order
10 books
Operation: Midnight Cowboy
by Linda Castillo
2007
A covert MIDNIGHT operative goes undercover on a remote ranch, expecting a simple protection assignment, not a stubborn woman with everything to lose. As sabotage and deadly attacks mount, he must keep his cover, protect the family and resist falling for his beautiful client.
Operation: Midnight Cowboy
by Linda Castillo
2007
Operation: Midnight Rendezvous
by Linda Castillo
2006
Deep cover operative Mike Madrid tracks Jessica Atwood to a storm lashed coastal town, expecting a traitor, not a desperate woman on the run with a small child. As secrets tied to Lighthouse Point erupt into violence, Mike and Jess must expose the truth before the town’s protectors silence them forever.
Operation: Midnight Rendezvous
by Linda Castillo
2006
Operation: Midnight Guardian
by Linda Castillo
2006
After a federal transport is ambushed in the Montana wilderness, MIDNIGHT agent Sean Cutter has forty eight hours to find fugitive scientist Mattie Logan. She swears she was framed by a terrorist known as the Jaguar, and as a blizzard closes in, the two must clear her name or die trying.
Operation: Midnight Guardian
by Linda Castillo
2006
Operation: Midnight Tango
by Linda Castillo
2005
Undercover agent Zack Devlin’s prison mission blows up in his face, forcing him to take corrections officer Emily Monroe hostage to stay alive. Trapped between deadly conspirators and the law, they must escape through hostile territory while deciding whether they can trust each other at all.
Operation: Midnight Tango
by Linda Castillo
2005
Operation: Midnight Escape
by Linda Castillo
2005
Six years after testifying against a vicious arms dealer, Leigh Michaels learns he has escaped from prison, and the man who once betrayed her walks back into her life. Special Agent Jake Vanderpol must keep her alive long enough to catch a killer and earn a second chance at her trust.
Operation: Midnight Escape
by Linda Castillo
2005
Series background & context
Operation: Midnight is a romantic suspense series built around MIDNIGHT, a covert agency that handles the dirtiest, most deniable missions the intelligence world has to offer. Each book follows a different operative on a high risk assignment that collides with a powerful, very personal love story.
In Operation: Midnight Tango, an undercover mission inside a prison implodes, forcing agent Zack Devlin to escape by taking tough, by the book corrections officer Emily Monroe hostage. What starts as a desperate alliance becomes a twisted chase through back roads and back channels as they expose a deadly conspiracy that reaches far beyond the prison walls.
Operation: Midnight Escape reunites Special Agent Jake Vanderpol with Leigh Michaels, the woman he once used as bait to bring down an arms dealer. When that criminal escapes years later, Leigh becomes the obvious target. Jake must keep her alive while proving to her that this time she is not just part of the plan.
In Operation: Midnight Guardian, MIDNIGHT agent Sean Cutter is given forty eight hours to track down Mattie Logan, a Department of Defense scientist accused of treason. Hunted by a terrorist known as the Jaguar and stranded in Montana’s backcountry during a brutal cold snap, Sean and Mattie fight both the elements and the enemies who want her silenced.
Operation: Midnight Rendezvous moves the action to a fog bound coastal town where deep cover operative Mike Madrid crosses paths with Jessica Atwood, a woman on the run with a secret and a small child. The quiet seaside community hides a history of corruption and betrayal, and Mike must decide how much he is willing to risk to bring the truth to light.
The final book, Operation: Midnight Cowboy, sends a MIDNIGHT agent undercover on a remote ranch where sabotage and violence point to a plot that could cost many lives. A stubborn, self reliant heroine and a hero who has spent too long alone are forced to work together, putting both of their hearts in the line of fire.
Across the series, readers can expect tight pacing, plenty of action set pieces, wry camaraderie among the agents and a strong emphasis on trust. The books are short, intense reads where the mission is always dangerous, the chemistry between leads is immediate and the endings deliver both justice served and hard won hope.
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