I read a book about 2 years ago, and I loved it!  Then I lent it to someone, and don't remember who.  So now I would like to get the book again, but can't remember the title, or the author.  It started out with a castle being under seige, then the Hero of the story gets hit in the head with a sling shot, and falls over.  When he gets into the castle he is looking for a girl, he is supposed to bring back to the king.  She pretends she has a twin sister, and that the twin is the one he is looking for, and she is pretending to be a nun.   That,s the beginning, it's a really good, and funny book, and I would love to be able to find it again, so if you can help me please reply to this and let me know.   Thanks