Quote from : The Girl Who Circumnavigated Fairyland in a Ship of Her Own Making Book

True names,” said September wonderingly. “These are all true names. Like, when your parents call you to dinner and you don’t come and they call again but you still don’t come, and they call you by all your names together, and then, of course, you have to come, and right quick. Because true names have power, like Lye said. But I never told anyone my true name. The Green Wind told me not to. I didn’t understand what he meant, but I do now.