A very short story originally meant for the author's newsletter subscribers, though now it's published on amazon w/KU. My copy was obtained via instafreebie when it was free.
I remember Gunner from the previous Norse series books, though not a whole lot if I'm honest. Even then I liked the story and wished it was a bit longer, maybe novella-length, giving a bit of the background on our H and the h's relationship. In any case, it can be read as a standalone.
I'm a big fan of Gina's Viking stories and still waiting for the next book in this series, though there's no release date of that yet. The blurb sounded very interesting to say the least.