Grove of Dodona

The Grove of Dodona is a stand of sacred oaks planted by the Titaness, Rhea, in the first days of the world. They are located in the Camp Half-Blood Forest, and the only oracle that is not affiliated with Apollo. The myrmeke's lair is currently the only known entrance to the grove.

The Hidden Oracle
On the way to camp, Apollo passes out. He dreams that he is riding the sun chariot and a familiar woman is at his side. The woman tells him to "follow the voices and find the gates". The sun chariot transforms into a bus and Apollo sees a man telling him to lead him to the Oracle so that he can burn it. Apollo and Meg accidentally went to Delphi during the three-legged death race; they overhear Python and Nero's conversation about controlling all Oracles and burning the fifth Oracle, which is the Grove of Dodona. Apollo explained that the Grove of Dodona was ancient even when the Olympians were born, and their sacred trees could actually speak, sometimes issuing prophecies. Apollo and Meg head to the woods to search for the Grove but Meg gets kidnaped by myrmekes. Apollo tries to find a way out and meets Rhea along the way. The Titan queen tells him to find and protect the Grove and hands him wind chimes to be tied at the largest oak to get a prophecy. He passes out again at camp. After waking up, he heads back to the woods and rescues Meg. The duo head towards the entrance of the Grove, only to be joined later by Nero and Germani. Nero forces the two to open the gates in exchange for the release of the five demigods and a palikos. Upon opening the gates, Meg crosses the threshold only to hear voices saying that Nero intends to raze the Grove. Nero lights his match but Peaches eats it. He drops a vial of Greek fire in a final attempt to burn the Grove and escapes. Apollo and Meg enter the Grove when Nero escapes. They tie a wind chime to the largest oak and get a limerick for Apollo. Meg releases Apollo and runs away while Apollo and the demigods find a way out of the woods. After the battle with the Colossus, Chiron asks Rachel Dare and Miranda Gardiner to study more about the Grove and how to use its power.

Prophecy
The Grove gave two limericks. One of them will be the driving force of The Dark Prophecy.

There once was a god named Apollo Who plunged in a cave, blue and hollow Upon a three seater The bronze fire eater Was forced death and madness to swallow

Caves of blue. Strike the hue. Westward, burning. Pages turning. Indiana. Ripe banana. Happiness approaches. Serpents and roaches.