Hidden Magic is a novella of the Sanctuary Chronicles series. You can read this without reading the other books, but if you want to get a better feel for the other characters outside of Brant and Kat, I recommend reading the others in the series.
Hidden Magic is a quick read, but it is written in such a way that it feels like a full-length novel. The characters are relatable and the story moves along and a good pace. I liked the way the depth of Brant’s true feelings for Kat just kind of snuck up on him. Unfortunately, it took a tragic event for him to realize just how he felt, but that just made him more determined to make things right.
This is great side story to the series and I enjoyed the read.