The main site and wiki seem to be bogged down and aren't loading, so I can't go there. I seem to remember the quest in the wiki being red anyway. Do I have to type something? Do I have to navigate somewhere? The in game prompt is so vague as to leave me clueless. Bolding Chieftain's Challenge without any context doesn't help.
You can hunt for specific events, just like hunt for creatures. Usually, when you're handed a highlighted codeword, it's the event name you have to go for.