I read a blog post a few weeks ago about a novel that had celebrated—or notorious, depending on which side of the debate you fell on—twist ending. Comments on the blog lined up in one of two columns—loved it or hated it. The haters complained the book had run afoul of one of their pet peeves: cop-out/too-convenient endings, genre switching, unconvincing characters, etc. The reactions to that novel prompted me to ask my fellow Missdemeanors: What do you hate most in fiction writing, mystery or otherwise? What’s your pet peeve?Alexia: I hate it when a mystery author conceals a fact from readers when that fact is critical to solving the puzzle, then has the sleuth produce the fact out of nowhere, leaving readers saying, “Where’d that come from?”. For example, Snuffy Smith’s long-lost identical twin is revealed as the murderer but his twin was never, even once, mentioned/hinted at/alluded to–not even the suggestion of the possibility Snuffy might have a twin–before the big reveal. That’s cheating. To paraphrase the rules of the Detection Club, a detective can’t have out-of-the-blue hunches that turn out to be right, can’t withhold clues from the reader, the solution to the crime can’t be chalked up to “divine revelation, feminine intuition, mumbo jumbo, jiggery pokery, coincidence, or Act of God”.(I’ll make allowances for “Act of God” if it’s a paranormal mystery and God is the sleuth.)Michele: Since you asked, and since I recently ranted about this on Facebook… I hate it when an author pulls a cheap trick at the end of a book so that the reader is unfairly surprised. It’s a variation of what Alexia has said. Instead of spinning a plot that thrilled the reader, in a book I recently read, the author purposely deceives the reader about something not central to the plot and uses it as a cheap “thrill” at the end. If it weren’t on my Kindle, it would have been the third book I’ve thrown across the room in my entire life. The author used the deception as substitute for an exciting plot twist. Years ago, I read a book while sick with the flu that had fabulous writing, a good plot, likable characters. There was no hint that it was going paranormal until at the very end, a character walked through a door. I mean THROUGH A DOOR. And don’t get me started on the one Anita Shreve pulled. At a conference, she told livid readers that she still gets complaints on what she did in one of her books, years later. (No spoilers here). Come on, guys. Play fair!Cate: I hate it when the villain is just evil. Bad people typically have a way of justifying their actions or they weren’t fully in control when they did the bad thing and now feel remorse. I HATE the sociopathic gun-for-hire killers. Fine if the writer explains how the killer got that way—a lá Grosse Pointe Blank. But I refuse to accept the bad-just-because explanation.Robin: I have 2 pet peeves in all genres:1) “Was.” I stopped reading a best seller on page 2 after counting 26 instances of “was.” Used sparingly it can be appropriate but not 26x in the first 2 pages. Whenever I see “was,” I rewrite the sentence in my head to make it active rather than passive. Overuse just exhausts me and irritates my inner editor.2) “Fortunately” or “unfortunately.” This kind of echoes your sentiment, Alexia. These statements of coincidence dropped out of thin air with no prior context will make me stop reading. Show me the build-up as characters arrive at their opinions of good or bad circumstances, or lead me to draw my own conclusions as the story unfolds. The only time I kept reading past the repeated use of “unfortunately” was Gone Girl. It fit with the character’s voice (no spoilers so I’m not saying who said it).Susan: I hate it when I get to the end of a book and can’t remember who on earth the suspects are. You could insert any name and it wouldn’t matter. Then comes the big reveal and I think, Oh. Nice. Who?Paula: I’m not a big fan of ambiguous endings. Nor endings which play out the theme of “Life is shit.” I don’t mind “life is shit but it’s all we’ve got so enjoy what you can,” but the “life is shit, we may as well all slit our wrists now” endings I find intolerable. I don’t need a happy ending, but I at least want a hopeful one.Tracee: Can I simply agree with you all? My pet peeves are variations on your themes, although the ‘life is shit’ one is really a no-go for me. Purely evil character with no deeper meaning is probably second. Honestly, I’m so fixated on making Michele tell us which Anita Shreve pulled the ‘character out of the air’ trick that I can’t focus on anything else. I haven’t read all her books, so don’t think I simply don’t remember it. I’m going to take Michele out for drinks at Malice and force her to tell me. Then maybe that will be my top pet peeve.