Nice, the story looks good so far. One pitfall I hope the author will avoid is to make the main character too powerful, too quickly. It sounds cliché but so many authors in this site makes overpowered protagonists and kills the pacing in the process. To avoid that I recommend that certain weaknesses and limitations be introduced that affects Baelon's vampirism. Luckily, there is a whole load of explored vampire weaknesses in other fandoms such as weakness to sunlight or extreme vulnerability to silver weapons. When done correctly limitations can make characters even more compelling and really immerses readers into the story(like Nen abilities in HunterxHunter).