Books 5-6.
5) How To Tell If Your Cat Is Plotting To Kill You. The Oatmeal/Matthew Inman. 2012. Highlights of The Oatmeal webcomic focusing on catty behaviour. Not for paranoid cat owners.
6) The Magic Three of Solatia by Jane Yolen. 1974. An old folkloric fantasy novel in four parts with wonderful language, atmosphere, and themes. The author does make the general themes of magic and it's consequences very true to the setting of the story. Well worth finding and reading.