Sorry, I'm not aware of the author of this 'petting zoo novel'. It could be an indie author or someone relatively unknown. You might need to do some more research in book databases or local libraries to find out.
I'm not sure specifically as there could be many novels with this name. It might be about a petting zoo, perhaps the experiences of the animals there, or the people who visit or work at the petting zoo.
One well - known ghost story is about a lost hiker. Legend has it that at night, his apparition can be seen wandering the trails, still looking for his way out. It's said he got lost decades ago and perished in the forest.
On their first visit to the petting zoo, the girl and her dog would be in for a treat. The dog could be of a friendly breed and would be eager to make new animal friends. The girl would be excited to touch and feed the animals. They might start with the miniature pigs. The dog would be sniffing around while the girl was giggling at how cute the pigs were. As they continued their visit, they would create many precious memories together at the petting zoo.