I admit I’ve run into this scenario. I used bolero instead of bolo for a tie description. I didn’t catch it. The editor didn’t catch it. Three proofreaders didn’t catch it. But one reader caught it and left a nasty note on Amazon reviews. He said I was “just sloppy”. I immediately changed it and uploaded the revision, but I couldn’t thank the guy who had caught my mistake because he didn’t leave contact information. So, it does happens.
However, I would like put up an argument that, if readers love the books, they aren’t going to stop reading if they catch an inconsistency, and as my example, I’ll use Rex Stout, author of the Nero Wolf/Archie Goodwin novels.
In the course of reading every novel, novella and short he ever wrote, I’ve discovered many contradictions. Archie Goodwin smokes in one novel and says that he doesn’t smoke in another. He also says that he’s never seen Inspector Cramer actually light his cigar, yet in earlier stories, Cramer puffs away. The list goes on.
It gives me a giggle to be so immersed in his world that I catch these things. It seems as if Mr. Stout was so involved in the world of his current story that what came before (or might come after) didn’t hit his radar. I don’t consider them sloppy mistakes. They just feel like one more eccentricity of the characters coming down through the author.
One of the reasons that these changing details don’t bother me is that they don’t affect the core of the characters. Archie still complains about Wolf, while at the same time admiring him. He easily falls for females, makes smart-mouthed comments, and loves being the right-hand man of the smartest detective around. Wolf is still an Immovable Object (Archie’s words, not mine), and he continues to take delight in cuisine and no delight women. (Though he claims to be neutral in the latter.)
I’ve put a disclaimer in the beginning of my Frankie Chandler, pet psychic, novels. Breeds are not always capitalized, and grammar aficionados would be quick to jump on how I capitalize all breeds. I do it intentionally out of love and respect for my furry characters. I wouldn’t recommend that writers ignore the details, but if the world they create and the characters who inhabit that world are intriguing enough, I think that readers will let the occasional slip-up slide.
If your memory is a sieve (it will happen eventually to most of us), you can always keep those details in order by using a chart, or a style sheet. In fact, I recommend that you do. Track locations, names, dates, and anything else that you’ll need to refer to at a later date. If you have the skill of Rex Stout, discrepancies can be charming. For the rest of us, well, we might be considered “just sloppy”!