Vicente was only there to talk about the native elves of Polaris Realm, who had passed through the island. He had many other curiosities and questions to ask someone as knowledgeable about local history as Lyra. But now was not the time to focus on things he would have time to learn later.
In a few months, he would find himself sailing the Sea of Stars again, when he'd have at least a few years at Lyra's side to hear some of what she knew. So, after resolving his immediate doubts and giving the three of them something in return, he said goodbye.
Vicente told them he would return one last time, when he was to leave Amae for good, when Lyra was to join his group and depart from Amae. This could happen at any time in the next few weeks, so she should be prepared.