Update: We have 100 free tickets to give away to readers, see below on how to enter to win.
HackCancer, a group that organizes fun events to benefit charities such as Make-A-Wish and the Leukemia & Lymphoma Society, is hosting the "biggest Game of Thrones themed party in San Francisco."
Held at an actual castle (The San Francisco Amory) on the day before the Season 4 premiere of Game of Thones, the event will feature music (both live and DJ-ed), sword fighting, and various performances. The party will also include a dragon (although the website isn't clear about what exactly that actually entails).