On the spectrum of superhero grittiness, Batman lands squarely on the darker side of things - because he’s not as outright gritty as, say, the Punisher, but he and his villains also need a whole lot of sprucing in order to be in an animated show without traumatising children. It's a delicate balance, but one that the vast majority of comic book writers and artists pull off so well that it's clear destiny brought them to the role.
This creates an interesting divide, as while many Batman comics aim to be slighter lighter, there’s a whole metric ton of comics that are basically horror stories with the Dark Knight added in. As such, if you’re looking for a Batman story that sends shivers down your spine, you may need the help of the World’s Greatest Detective, as they’re very much hidden gems.
But, much like real life gems, they’re also incredibly valuable, as deep down we all want a Batman story every now and then that makes us feel like a kid reading their first Goosebumps. (Or an adult reading their first Goosebumps - we’re not here to judge.)