I was in the library the other day, when I noticed this book:
It's a Nancy Drew book. If the cover is any indication, she goes to a pink house with a crooked banister. And then she fights a robot.
I looked up a few book reviews, and they all say this book is great. However, they say that Nancy doesn't really fight the robot. It's just a wacky robot that lives in the strange old mansion where she's solving a mystery. Nobody's mentioned whether or not the mansion really is pink.