Had he heard of fairies? He had been called one before, which did not reflect well on the accuser's character. But yes, he had heard of fairies. Who hadn't?

He smiled innocently into that focused interest of hers and shifted under the weight of her stare. Maybe this was not a good idea after all, asking a potentially occult being such telling questions. Aziraphale might have bit off more than he was prepared to handle, especially if she was actually somehow a real fairy. One wily trickster was quite enough in his life, thank you.

"I do live in England; it is practically impossible to not have heard stories of fairies and the fae. The legends are woven into the fabric of the culture. However, I have it on very good authority that some of the work attributed to them might actually be demonic mischief."