It's a new year, and another Winter Bash is behind us. Let's relive some of the highlights, and finally get to the bottom of the mysteries of the secret hats, before we close the 2015 (year)book for good!

Another calendar year is ending, which can mean only one thing. It's time once again for the event that brings joy to all (with a slight helping of dismay for our friends in the southern hemisphere1): Winter Bash!