Can you recommend a few best whodunit romance novels?

Well, 'The Rose Code' by Kate Quinn is an excellent choice. It combines the intrigue of code - breaking during World War II with a romantic story. Then there's 'The Thirteenth Tale' by Diane Setterfield, where the mystery of an author's past is intertwined with a budding romance. Also, 'Gone Girl' by Gillian Flynn, though dark, has a relationship at its core with a lot of mystery about what really happened between the two main characters.

One of the top choices could be 'Gone Girl' by Gillian Flynn. The story has a thrilling mystery and a twisted romance that will keep you on the edge of your seat. The characters and their relationships are very well-developed.

I'd recommend 'The Silent Patient' by Alex Michaelides. It's a gripping tale with a mysterious romance woven in.

Yes. 'Magpie Murders' by Anthony Horowitz is a must - read modern whodunit. It has a clever structure with a mystery within a mystery. 'The Seven Deaths of Evelyn Hardcastle' by Stuart Turton is really unique. It's like a time - loop mystery which is different from the typical whodunit. Also, 'The Kind Worth Killing' by Peter Swanson is an engaging modern whodunit with some dark twists.

One great 'whodunit' romance novel is 'The Duke and I' by Julia Quinn. It combines the mystery of a scandal in the ton with a budding romance. Another is 'Death on the Nile' by Agatha Christie which has a strong element of mystery and a touch of romance between the characters. Also, 'Silent in the Grave' by Deanna Raybourn is a good pick, with a complex mystery and a growing relationship between the main characters.

For beginners, 'The Hound of the Baskervilles' by Arthur Conan Doyle is a great choice. It has a famous detective, Sherlock Holmes, and an interesting mystery set in the moors. It's easy to follow and very engaging.

For beginners, 'The Hound of the Baskervilles' by Arthur Conan Doyle is a great choice. It has a simple yet engaging plot about a supposed supernatural hound haunting a family. Sherlock Holmes uses his deductive reasoning to solve the mystery, which is easy to follow for new mystery readers.

Definitely 'And Then There Were None' by Agatha Christie. It has a great mystery and some underlying romantic tensions. 'Pride and Prejudice' by Jane Austen can also be considered as it has elements of mystery about the characters' true natures and of course, a wonderful romance. 'The Girl on the Train' by Paula Hawkins also has a mystery aspect and a relationship at the center.

I'd recommend 'The Speckled Band' by Arthur Conan Doyle. It's a short Sherlock Holmes story, so it's not too long or complex for beginners. It has all the elements of a great whodunit - a mysterious death, strange clues, and Holmes' brilliant deductions.

One of the top whodunit novels in 2015 was 'The Girl on the Train' by Paula Hawkins. It had a captivating mystery and kept readers guessing until the end.