"Magic in the Mail: Feuding Fae" has been specifically designed to be suitable for all ages (my kids are 4 and 6). There is no violence, and no romance, and you even get a tiny teddy toy (hand made by Silly Bugs Design and unique) at the end. It costs $50 ($40 for a boxed set bought in Canberra/in person at a fair or conference). It is strictly G-rated.
"Magic in the Mail: Emmeline's Empire" is a mini-story that features one of the minor characters from my novel series. That character is a trans woman, and the story is a romance. It is also a story of healing and forgiveness. There is one violent paragraph about a rather bloody death in battle (not one of the familiar characters).