How do I unlock the surprise for advent calendar? I bought the Lego Friends 2016 Advent calendar. It says that I can unlock a surprise on 12/4, but I can't find where to unlock it....
Found it! Here is the link for the December 4th surprise:

https://web.archive.org/web/20170505135238/https://www.lego.com/en-us/friends/activities/downloads/2017-christmas-bi-1