Summary : Mr. Jingles and Delacroix finally meet one another in The Mouse on the Mile, Chapter 9. It's been a long time coming—the reader (Us) have known about their relationship since The Two Dead Girls, Chapter 2. What the reader (Us) didn't know is that Delacroix is convinced the mouse talks to him. It's difficult to say whether Delacroix is making up stories or if Mr. Jingles really talks to him. After all, a lot of supposedly impossible things happen in this book