No, no Carrie - it might not be a children's book. Could be that WHSmith had misplaced it. Or it might be a book that is intended for children AND adults - like the Curious Incident of the Dog in the Night-time, which was marketed to adults and children.

And don't worry, I won't let the forum police take you away. If necessary, the squadron will come and rescue you. You're too valuable to lose!