Well, 'City of Bones' from 'The Mortal Instruments' series can be considered as such. It has a world full of shadowhunters who deal with crimes related to demons and other paranormal entities. Also, 'The Graveyard Book' by Neil Gaiman has a touch of the paranormal in a rather unique crime - the main character is raised by ghosts in a graveyard and there are elements of mystery and danger that could be seen as a form of crime in that strange world. And don't forget 'The Nightside' series by Simon R. Green, which is set in a dark and seedy part of London where all kinds of paranormal crime occurs.
Paranormal crime novels involve elements that are beyond the normal, like magic, vampires, or ghosts. Regular crime novels usually deal with more realistic crimes and detectives. For example, in a regular crime novel, a detective might solve a murder case through forensic evidence. But in a paranormal crime novel, the detective might be a vampire hunter using holy water to solve a case involving vampires.
One characteristic is the blend of the supernatural or paranormal elements with crime. For example, in some stories, vampires might be involved in a series of murders that detectives have to solve. Another is the creation of a unique atmosphere. The presence of ghosts or otherworldly forces often gives a spooky and mysterious feel to the story. Also, the characters are usually complex. You might have a detective who is skeptical of the paranormal at first but then has to come to terms with it while solving the crime.
One popular book is 'The Dresden Files' by Jim Butcher. It follows the adventures of Harry Dresden, a wizard detective in modern - day Chicago. Another is 'Anita Blake: Vampire Hunter' series by Laurell K. Hamilton. It combines vampire lore with crime - solving. 'Midnight Crossroad' by Charlaine Harris is also great. It's set in a small town full of strange characters and paranormal happenings related to crimes.
The difference lies in the level of sensuality and sexual content. While a normal paranormal novel may have a romantic sub - plot, it's not the main focus. In an erotic paranormal novel, the sexual attraction and relationships between the characters are a major driving force of the story. For instance, in a regular paranormal about fairies, the story could be about their magic and their role in the ecosystem. But in an erotic paranormal with fairies, there would be more focus on their sexual desires, mating rituals, and the passionate relationships that form within their fairy society, often with detailed and steamy descriptions.
One of the best paranormal novels is 'Twilight' by Stephenie Meyer. It combines the elements of vampires, werewolves, and a love story. The world she created is full of mystery and the characters are very engaging.
Another good one is 'The Graveyard Book' by Neil Gaiman. It's about a boy who is raised by ghosts in a graveyard. There are all sorts of paranormal elements like the different abilities of the ghosts and the mystery of the boy's true identity and the threat that looms over him from the man who killed his family.
One of the best rated paranormal romance novels is 'A Discovery of Witches' by Deborah Harkness. It combines elements of magic, vampires, and witches in a really engaging way. The relationship between the main characters, a witch and a vampire, is full of tension and passion.
The 'Anita Blake: Vampire Hunter' series by Laurell K. Hamilton is also great. It combines elements of the paranormal, like vampires and werewolves, with mystery as Anita tries to solve various crimes in a world where the supernatural is real. The series has a complex world - building and interesting characters.
The 'Black Dagger Brotherhood' series by J.R. Ward is also very popular. It has a complex world of vampires, their battles, and the romantic relationships that develop within this dark and alluring setting. The series is known for its strong characters and steamy romances.