Spike knew where they were headed, but he didn't answer Aurora's question. It wasn't in his place to give out the details of their quest. To his right he saw Lake Somal which meant they were heading towards Bearlin. Naia and he have been dispatched to find the reincarnation of the dragon, though he didn't see much hope for the mission. It's like searching for a needle in a haystack, except there's nothing but needles, only one is the right one, and it might not even exist. Nevertheless he would follow Naia to the ends of the world on any impossible task to keep her safe. For that was his oath as her warder, and he had no intentions of breaking that oath,(not that he had a choice in the matter). For now he would just quietly follow the two ladies, keeping his opinions to himself, and keeping a lookout for danger.