I have a neighbor who is a pretty successful book publisher. They were saying fiction should be done via Amazon self publishing as a general rule. Though children's books make good money because they are books that are generational from parents who love them & share them with children & grand children.

Maybe children's short stories that use photos as the pics, or an illustrator who can capture that world she created could be a way to do this.

This publisher has had some top selling children's books that have lasted months on Amazon's top 10 list if I recall that conversation correctly (for good authors & illustratiors). Non fiction

I can set up a Google account & would love to read what you have if you would like. You mother is a cherished friend.