The D.I.C.E. Body of Elders has given Fortress F-99 the task of representing D.I.C.E.in the Heron Festival on planet Tole. At first, it looks like a rather run-of-the-mill parade job, but something prompts Jet to investigate elsewhere, and he discovers a secret underground city, home to ancient Fahmi people who claim to be the keepers of the true Heron Festival.