Not every dragon has a witch

To save my friend and figure out her past, I had to travel overseas. To a land of ancient legends that have long become children's fairy tales about princesses and dragons.

But wait! Dragon scales are still mentioned in alchemical treatises! And alchemists are not the kind of people who are ready to believe in fairy tales. Does this mean that dragons exist, and noble beings brazenly lie to their guests? Definitely, this needs to be verified. How can I allow my cousin to marry a liar, and one that's scaly at that?!.