And wasn't there something about fairies twisting their words?
"I notice you didn't tell me what the countermeasures are for," she accused. "Or, for that matter, what I'm supposed to owe you. You didn't say."
"I did not wish to complicate matters, and I believed you'd be able to guess." Mab raised an eyebrow. "Or do you wish me to define every possible term? There are demons who take pleasure in claiming that 'up' means 'down', but I am not such a one."
She did not, Io noted, actually answer her question. Oh, this would have been so much easier if she could just run her through.
"So did you save my life, or not? Yes, or no?"
"Without my summoning, there would at present be no-one calling themselves 'Io Nitta' in this world—"
"Yes, or no!" She growled in frustration. "In the first place, my name is Nitta Io, not the other way around. You're not even trying! If you were trying, you wouldn't be talking about someone who doesn't exist. If you want me to help, then tell me straight, and you have to stop lying!"