Diego shares his revelation about Mordred with the group and Athena accompanies him back into Occulus for more answers. Tosh grills Río about Telloh. Athena is annoyed by Diego’s naïveté, but Río sees through it and tries to get to the heart of the problem. The boys set out for the Questing Beast on their own and end up getting more than they bargained for. An old friend makes an appearance.