No sighing required, gangerh. I wasn't suggesting you were the one contesting the words. I was asking you because you're the one reading the book. :-) Actually, I'm enjoying your Jasper Fforde additions quite a bit.
Probably The Big Over Easy would be a better starting point as it did come as the first 'Nursery Crime' book. It deals with the case of Humpty Dumpty's demise, which prompted a murder inquiry conducted by The Nursery Crimes Division of the Oxford & Berkshire Constabulary.
I'm not the one contesting fact and fiction here, reesetee. Or even grammar. I'm just playing with words.
You do raise an interesting point, though. The Fourth Bear is fictional and it does have people as fictional characters. Co-habiting this world there are characters that these fictional people know as being fictional to them. Characters from their books, stories, fables, nursery rhymes etc, the likes of Jack Spratt (who ate no fat), Goldilocks, Little Red Riding Hood, Dorian Gray, The Gingerbread Man, Punch and Judy. These characters are known as Persons of Dubious Reality aka PDRs.
If I've failed to get this across then I guess you have to read the book. It is highly entertaining (even to bears) and is more mature than it sounds.