Jacqueline has a secret. One far bigger than anything she's kept before. One she can't even tell d'Artagnan. She is a girl, this he knows; but there is something else she's hiding…he is sure of that. When he finds her walking the Paris streets at night, dressed as a girl, he knows something is definitely going on. What is it that she's keeping from him? And what does it have to do with the small locked box she keeps on the tiny wooden desk in her room?