Another friend of King Henry's Dusty Rose, (her human is from the blog Chapter Break) recommend Mockingjay by Suzanne Collins. Now this is a trilogy that King Henry can't wait to read. Both of his humans seem to be very big fans.
Samantha one of King Henry's lady friends was really adamant about King Henry reading a classic. She recommends Secret Garden by Frances Hodgson Burnett. He said it will go on the top of his TBR (to be read) list.