I'm not sure exactly. It depends on how you define a story within The Shard. Maybe you could look for a detailed index or summary to get a precise count.
In 'A Shard of Glass' short story, it might be about a single shard of glass which could symbolize many things. It could be a broken piece of a past, like a broken relationship or a shattered dream. For example, if the story is set in a post - apocalyptic world, the shard of glass could be a remnant of a once - great civilization's architecture, representing the loss and fragmentation of society.
I'm not aware of any fanfiction with such a title that would be appropriate for all ages. Fanfiction often involves the creative interpretations of fans, but this title seems to have inappropriate implications. It's better to focus on positive and family - friendly fan - created stories about Hermione, like those that explore her academic achievements or her friendships.