What Mystery Thriller Romance Novels Focus On Cold Case Investigations?

When a secret agent falls in love with the very mob boss she's supposed to be taking down, there can only be deadly consequences...

"He's gone, Elizabeth," her captain Charles Johnston tells her. Elizabeth blinks back her tears. Her face full of shock and disbelief. Her frozen stare interrupted by his words. "He left his badge." "There's no way," she thought. He wouldn't leave her like this. No warning, no phone call, no letter. She was more to him than that or at least so she thought. That conversation has plagued her for 3 years. For 3 long years, Detective Elizabeth Ryan tried to shut out him, to finally be able to move on. But just as she does, he abruptly returns seeking more than what either of them anticipated. Will Elizabeth be able to forgive him, or will the past be too much to swallow? What happens when life throws her too many twists to handle?

With the sudden death of his sister, detective Dawson Wills was going to give everything to find her killer, he wanted to do it alone. To find and make the killer pay for causing him so much pain, but unfortunately, life doesn’t always give you what you desire. Dawson was giving a partner, one of the things he disliked as a detective. Jane Johnson was Dawson's dream woman, how would Dawson maneuver his way from falling in love with this beautiful woman who was now his partner and finding his sister’s killer? He dislikes having partners, but detective Jane was too beautiful to be disliked….

Meet Esmerelda Sleuth. Sleuth is her name and investigating is her game. (Paranormal Investigating, that is.) Esmerelda makes a good living as an investigator in a rather progressive firm. She lives a stable and sensible life until she meets Lance; an old money "hottie" who works for a real estate firm next to her building. After accepting an invitation for a weekend getaway party, she quickly discovers that Lance has a secret. He is wealthy. That part is true. And, yes, he's procured a job as a realtor in the building next door. His secret is that he belongs to an underground society of humans who didn't abandon their connection to magic centuries ago when religion declared it evil and he has traveled through time specifically to find her and bring her back to his time to marry him. If that isn't enough of a far fetched tale to absorb, he informs her that she was born in his time to a family belonging to that same secret society and was promised in marriage to him as an infant. When enemies who didn't want to see the union of families take place made attempts on her life, her parents sent her into the future and erased her memories of them as a precaution. Possessing virtually no belief in magic, ghosts, psychics, time travel, etc., it takes some doing on Lance's part to convince her to believe his story and go back with him. When she does, the lies, deceit and attempts on her life start all over again. Will she escape emotionally and physically unscathed? "The Other Side Of the Mirror" is a steamy-paranormal-romance- mystery-thriller and book one of the Esmerelda Sleuth series.

Five years ago, Sera Blackwood walked away from the only man she ever loved—and the pack that wanted her dead. Now she's back in Crimson Hollow, and Dante Silverclaw, the alpha who let her go, isn't the same broken wolf she left behind. He's harder. Colder. And he has exactly thirty days to find a mate before the pack council forces him to marry someone else. Someone who isn't his true mate. When a series of brutal murders rocks the supernatural community, Sera finds herself working alongside the man who still owns her heart. But the killer isn't just targeting random victims—they're hunting wolves who know the truth about why Sera really ran. As the blood moon rises, Sera must choose between protecting the secret that could destroy Dante's pack or claiming the second chance at love that might cost them both their lives.

Blood and mayhem sends Charlie Brown, on a trail of a criminal. A night hunt leads her to the city's cradle of debauchery, Sin City and there she meets a man who all but intrigues her. Dangerous and flirtatious, he brings a lot of trouble. Simple rules, easy life is his motto. Maddox Black has worked as a successful business owner dealing with a repertoire of clientele who can't afford a scandal. With the attractive FBI agent showing up at his door, he's willing to do anything to get rid of her. Entangled in a web of secrets and lies, they learn that while different on the surface, they have more in common than anyone would think. In a world full of chaos, where money and power rule, Charlie and Maddox yearn to break free, but a string of events that began before either of them were involved threatens to destroy them instead