What are some popular mystery and romance novels?

One popular romance mystery novel is 'The Hating Game' by Sally Thorne. It combines office romance with a bit of mystery as the two main characters, who initially dislike each other, start to uncover secrets about each other and their work environment. Another is 'Gone Girl' by Gillian Flynn. This book is full of twists and turns in both the mystery of a missing woman and the complex relationship between the two main characters. And 'The Kiss Quotient' by Helen Hoang also fits the bill. It has a unique take on romance with an autistic main character, and there are elements of mystery as she navigates her new relationship and her family secrets.

One popular romance mystery novel is 'The Hating Game' by Sally Thorne. It combines office romance with a bit of mystery as the two main characters compete for a promotion while also dealing with their growing feelings for each other. Another is 'Gone Girl' by Gillian Flynn, which is full of twists and turns. The relationship between the two main characters is complex and mysterious, and the story keeps you guessing until the end. And 'The Silent Patient' by Alex Michaelides is also great. It has a psychologist trying to figure out why a famous painter killed her husband, and there's a romantic undertone to the main character's journey.

Well, 'The Kiss Quotient' by Helen Hoang is a great mystery romance. The main character, Stella, has Asperger's and she hires an escort, Michael, to teach her about sex and relationships. There's mystery in how their relationship will develop. 'Nine Perfect Strangers' by Liane Moriarty also has mystery and romance. A group of people go to a wellness retreat, and as they get to know each other, there are romantic entanglements and a mystery about the true nature of the retreat. Then there's 'The Girl on the Train' by Paula Hawkins. It's a mystery thriller with a strong element of romance as the main character is haunted by her past love and is trying to solve a mystery related to a missing woman.

Well, 'The Girl on the Train' is a great example. It has a romantic undertone as the main character is dealing with her past relationship while being involved in a mystery. Also, 'Rebecca' by Daphne du Maurier is an old classic. The relationship between the unnamed narrator and her husband is full of mystery and there's a romantic aspect to it as well. The setting and the secrets in the story make it a wonderful romance mystery novel.

'Death on the Nile' by Agatha Christie has a touch of mystery and some romantic undertones. While it's mainly a mystery novel, the relationships between the characters add a bit of a romantic element. It's a classic that many people enjoy.

One popular Victorian mystery romance novel is 'The Moonstone' by Wilkie Collins. It combines mystery elements like a stolen diamond with complex relationships. Another is 'Sherlock Holmes' stories by Arthur Conan Doyle which often have elements of mystery and romance in the background. 'Jane Eyre' by Charlotte Bronte can also be considered in this category as it has mystery surrounding Mr. Rochester and a strong romantic plot.

One popular one is 'A Discovery of Witches' by Deborah Harkness. It combines the world of witches, vampires, and daemons in a mystery - filled story with a strong romantic element.

The 'Flower Shop Mystery' series by Kate Collins is also great. The main character runs a flower shop and gets involved in various mysteries while having a budding romance with a detective. It has a charming small - town feel and interesting characters.

One popular one is 'Twilight' by Stephenie Meyer. It combines the allure of vampires with a romantic storyline and a touch of mystery as Bella discovers Edward's true nature.

One popular steamy romance mystery novel is 'Fifty Shades of Grey'. It combines elements of a passionate romance with a bit of mystery as the main character, Anastasia Steele, gets drawn into the complex world of Christian Grey. Another is 'The Hating Game' which has a steamy relationship between two coworkers that also has some mystery elements in their competitive banter and hidden feelings. And 'The Kiss Quotient' is also great. It features a woman on the autism spectrum exploring a new relationship which has both a romantic and mysterious side as she discovers new things about herself and her partner.