Before they leave, Xendi will mention that she plans to stay behind, until they get closer. As the journey is likely to take them about a week with the horses, but her only a day and a half, she'll set out once they've covered most of the distance. Since Arixia spooks the horses, with her presence, she stays in the back of the wagon, leaving Nameless and Mirada to sit up on the front seat, in uncomfortable silence for the journey.