Like 4-5 years ago, an author came to our school (fourth or fifth grade, i think) to tell us about his book. I don’t remember the name. Just some random facts.

It had clues to finding diamond rings supposedly hidden around the world.

It was big, not standard book size.

Some of the writing could be read upside down to say something else.

There were at least two books.

At the back of the book, there was a spell book. It said Light Spells Light, and upside down it spelled Dark Spells Dark.

I remember it was about a man, his wife was an elf, and his dog was part moth.

The house was alive? I think

There were fairies, like normal nice ones, and some other creatures that were like evil fairies

There was one page that you could hold up to the light to reveal more letters.

And evil fairy stole the spell book.

One of the spell book pages had just random symbols like moons.

Anyone know what it is called?