The Death of Joan of Arc

The Death of Joan of Arc by Michael Scott tells the story of Joan's death in France, 1431. It is extremely short, and I think that the book should've been read after the 4th one in the series. Unfortunately I didn't do that and quite honestly can't remember Joan and Scathach's story lines. I'm also a little confused because of the timey-wimey stuff, but nonetheless, Michael Scott's writing was as expected and followed on from the series. I didn't read the blurb, so the 12 pages were full of suspense and Scathach's appearance was a wonderful surprise. I also enjoyed that it wasn't from Joan's perspective, but I definitely wouldn't mind reading that too.
All in all, I think it must be read if you are already reading or will start reading The Secrets of the Immortal Nicholas Flamel series.