It depends. If you're someone who gets easily frightened by unexplained sounds in a mysterious setting like that of the 'dark stone stories', then yes, they would be scary. However, if you're more of a skeptic and look for rational explanations, you might not find them as scary.
Sure. You might hear creaking floorboards that seem to have no explanation. Like there's something moving around in the attic of the shop, but when you look up, there's nothing there.
Once upon a time, in an old, creaky house, there were strange noises at night. Every midnight, a scratching sound would come from the attic. One night, a young girl decided to investigate. As she climbed the rickety stairs, the noises grew louder. When she reached the attic, a cold wind blew and she saw a shadowy figure. She screamed and ran out of the house, never to return again.
To write noises well in a novel, you need to consider the context and the mood you want to create. Maybe describe how the noise affects the characters or builds tension. Like 'The constant drip of the leaky faucet was driving her crazy.'
Well, the 'noises through the wall' in the 'dark stone stories' might be related to the nature of the dark stones themselves. If they are some sort of special or magical stones, they could be emitting noises as a form of communication or as a warning. Or it could simply be the result of the environment around the stones. For example, if there is water flowing nearby, the sound could be carried through the stones and seem like it's coming from within the wall.
One common element is the unexpectedness of the noises. For example, in many stories, the main character is in a seemingly normal place like a house or a hotel room, and suddenly there are strange noises that break the silence. Another element is the mystery behind the noises. It could be a ghost, a monster, or some unknown entity making those sounds. And often, the noises build up tension. As they get louder or more frequent, the fear of the character (and the reader) increases.