For my money, the title in the list of books he likes that proves he’s a huge mental case is PETER PAN.
Peter Pan is really quite a clever play and book (Barrie wrote several versions). The originals work on many levels. Barrie wasn’t a bad writer.
Of course, we don’t know which “Peter Pan” he means, as there have been quite a few derivative kids books.
http://www.gutenberg.org/ebooks/26654
http://www.gutenberg.org/files/16/16-h/16-h.htm
Of course they can all be dismissed as juvenile silliness, but still, one can be excused. One of my favorites is Rostands play “Cyrano de Bergerac”, another clever bit of theatrical fluff.
http://www.gutenberg.org/ebooks/1254