Five Pillars of the Sun
Main Quest: Translate the Heavenly Atlas
Objective: Rescue Zerik in the dwarven ruins, meet up with the other party to obtain the Heavenly Atlas at the inn down the street from Galadriel’s house, escort Zerik to the Skyriil mountain range (Between Skyrim and Cyriil), find the cloud giants and get Zerik to convince them to translate the Heavenly Atlas for you.
Summary: Zerik is being held captive at the bottom of an old ruin. Rescue him to get the Heavenly Atlas translated by the Cloud Giants to find out where the Five Pillars are before the Withered Hand does.
Side Quest: Resurrect Zerik
Objective: Take Zerik’s body to the cleric named Augustine in the Vermillion Forest to revive him and to heal Grognak’s severed arm.
Summary: Zerik sacrificed himself in order to activate a teleportation machine which was the only way out of the dungeon. Grognak has lost his arm due to a trap in the dungeon. Take Zerik’s body all the way to the Vermillion Forest and find a cleric of Saranrae named Augustine. You need Zerik alive to do the Main Quest!