Board Thread:Game Discussions/@comment-184.157.90.36-20140128190918/@comment-24335380-20140129005113

Hard to say, they normally do challenges when a holiday is coming up (Halloween, Christmas, 4th of July, etc.) But it really is hard to say, because the Ancient Dragons sort of came out of nowhere so it is hard to tell. I'd say it would happen in the next two to four weeks, just a guess though.