EquiSpirit Substack consists of a mom with incurable cancer describing her daily life. She loves horses. She has a five year old. There are plenty of photographs, but it is possible to use stock images or create them with generative AI.
Alas, EquiSpirit supplies only a psuedonym and a city, Devon in England, but without last name, there is no way to prove that her Substack is not entirely fiction. Everyone can tell their own story on the internet, but that does not mean the story is true, and there is no way to verify EquiSpirit's tale.