A human, named Marcus, is challenged by a sphinx to a game of riddles. If he wins, then he may leave. But if he loses, then the sphinx decides his fate.
At the end of "Daring Doubt", Ahuizotl revealed after touching the Truth Talisman that he was a Jungle Guardian who was tasked with protecting the artifacts of the River Basin. However, was that really the truth he was spilling? Or somehow...a lie?