I really like this story. The Queen’s character is interesting, and (at least until the last section) reminded me that, even if it’s not true for a lot of Glowfic templates, power does corrupt for a lot of people.
This line also made me look forward to the Effulgence arc or other Queen-Promise interaction more than before:
She can command her fairies not to lie, she can even command them to spend hours introspecting. But she cannot guarantee that their answers will be right.
I fear the canon means by which Promise gets away from Yellow might not be as nice for her as the one we’ve seen in sandboxen.