A few years ago, I read a book that I liked, but I don't remember the title. I believe it was about a girl and her brother, and he gets Leukemia, and her parents won't allow her to visit him, so she sneaks into the hospital to see him before he dies, and there is something about a doghouse that they built together, and they kept arguing over what color to paint it. That's all I can remember, If you know what its called, it would be a big help, thanks!