What is the 'My House Is Falling Down' novel about?

I'm not sure specifically as I haven't read this novel in detail. But generally, it might be about a situation where the act of 'blowing the house down' is central, perhaps metaphorically representing the destruction or upheaval of a home, family, or a certain way of life.

One story could be about an elderly person who accidentally fell down the stairs. They might have been in a hurry to answer the phone and misstepped. Thankfully, they only had minor bruises and a sprained ankle. Their family quickly came to their aid and took them to the doctor to get checked out.

In the metaphorical sense, inexperience. If it's your first attempt at something like a new job or a new relationship (your 'first story'), you may not have the skills or knowledge yet, and this can cause things to go wrong and seem like they are 'falling down'. For example, in a new job, not knowing the proper procedures can lead to mistakes that can start a downward trend in your performance.

Another interpretation could be in the context of storytelling. If you are the narrator and you say 'falling down my first story', it might mean that the first part of the story you are telling is taking a negative turn or leading to a downward spiral for the characters involved.

The 'blow your house down novel' could potentially be about the destruction of a home, either literally or symbolically. It might explore themes such as vulnerability, the loss of security that comes with the destruction of one's dwelling place. It could also be about the characters' journey to rebuild or find a new sense of home after such an event.

It's a rather unclear phrase. If we break it down, 'falling down' is an action of collapsing or descending suddenly. But'sho' throws it all off. If we go with the idea that it's related to a story, perhaps it was a sudden event like a plot twist that made things 'fall down' or go wrong in the first part of the story that the person is either writing or telling.

I'm not entirely sure what'sho' means in this context. If 'first story' refers to the first floor, perhaps it could mean something like 'falling down shoes from my first floor'. It might be a very unclear or misphrased statement.

No way. 'Falling Down' is a figment of the imagination. It doesn't draw from any actual events or people. It's all part of the creative process in the world of storytelling.

In 'Jane Eyre', Bertha Mason's house (Thornfield Hall) burns down.

It's possible. You could search on popular book platforms or check with local libraries. Sometimes indie authors also write such stories.