Eredthor was an elite elven warrior sent by Seren to aid Solak. He, unlike the others, fell into the allure of the power of the Grove, and decided to harness the energy for his own malice instead of protecting it. Attacking Solak, he eventually was defeated by the joint effort of Solak and the siblings, but at a cost. Eredthor's influence ended up corrupting Solak, prompting the anima creation to seal off the Grove to protect Gielinor.