from my guide:  "For the last part of the war, you just need to have completed part 4, check both tribes and then go to sleep in your room and the game will ask you if you are ready; this part also requires you to be at least on day 35 (or day 40 if you haven’t completed “saving the master”)."

(part 4 being the fruit festival and saving the master being the demon city thing).

The lizards being hanged means nauxus likes you more (based on a hidden suspicion points counter altered by your choices, see the guide for more info), so you'll either go for neutral or lizard route (unless they had the same score, then bull route has priority.)