Wiki - Trust of the Tribes
Mynlidia The Tribunal keeps the peace in Eacotura. To this end she is willing to offer a reward to those to prove their friendship to the indigenous people. Travel to each of the four tribes and speak to the Chieftains. Each will present a way to earn their tribes thanks. Return to Mynlidia to receive a reward. Rewards can be seen in the tribunal's tent.
Among the rewards for this quest is the Moonstone Crystal. When locked down in a players house it becomes a teleporter that will take players who double click on it to several locations in Eacotura.