The Mystery & Supernatural squares!
The Mystery Squares:
19. Genre: Mystery: anything that fits into the mystery genre. Book list linked here.
20. Amateur Sleuth: this mystery will have a main character who is not a member of law enforcement. This can include retired police officers and private detectives. Book list linked here.
21. Baker Street Irregulars: mystery that involves children/teens in crime solving. Book list linked here.
22. Classic Noir: mysteries published prior to 1980 with noir elements, including authors like Raymond Chandler, Cornell Woolrich and Dashiell Hammett. Book list linked here.
23. Country House Mystery: a closed circle murder set during a gathering like a house party. Book list linked here.
24. Cozy Mystery: a subgenre of crime fiction in which sex and violence are downplayed or treated humorously, and the crime and detection take place in a small, socially intimate community. Book list linked here.
25. Genre: Suspense: anything that fits into the suspense genre. Book list linked here.
26. Locked Room Mystery: a subgenre of detective fiction in which a crime (almost always murder) is committed in circumstances under which it was seemingly impossible for the perpetrator to commit the crime or evade detection in the course of getting in and out of the crime scene. Book list linked here.
27. Modern Noir: mystery with noir elements, including authors like James Ellroy, Ian Rankin, anything that falls generally under the category of Nordic Noir, Tartan Noir, Granite Noir, etc; Book list linked here.
28. Romantic Suspense: any romance which has a significant sub-plot that involves mystery, thriller or suspense; also gothic romance. Book list linked here.
29. Serial/Spree Killer: a sub-genre of crime fiction that involves the detection of serial or spree killers. Book list linked here.
30. Murder Most Foul: any murder mystery. Book list linked here.
The Supernatural Squares:
31. Cryptozoologist: any supernatural creature, from Ammit to Ziz. Check out the book lists for monsters, vampires, shifters, or deadlands.
32. Deadlands: elements of the undead - zombies, wights, vampires and other revenants; Book list linked here.
33. Ghost Stories: any story involving ghosts or hauntings - includes haunted houses. Book list linked here.
34. Magical Realism: a style of fiction that paints a realistic view of the modern world while also adding magical elements Book list linked here.
35. Shifters: werewolves, skin-walkers and all other therianthropes. Book list linked here.
36. Spellbound: books containing witches, warlocks, sorcerors and witchcraft; Book list linked here.
37. Supernatural: mystery, suspense or horror books which include elements that defy current understanding of the natural world, including magic, witchcraft and/or crypto-zoological aspects. Book list linked here.
38. Vampires: vampires, preferably non-sparkly, in all of their glorious fictional permutations. Book list linked here.