Fun book box!

I received a super cool book box! Inside was Sisters of the Resistance, a tale of two women in the 1940s in France resisting the Nazis. Under the book were three gifts I'm not supposed to open until I reach certain pages in the book. Also, the box came with a pamphlet with an interview with the author, and on the back a secret decoder I can make with the supplied images. There was also a bookmark in the box, as well as a little note about the box. Thank you, so much! This was fun to open, and I'm looking forward to reading the book.