Thronis is the last Sky Giant, and the tallest giant that still lives. He is a powerful sorcerer who possesses and control over weather. Thronis has his own giant-sized armor and weapons. Agad, the wizard that is the attendant of Wyrmroost fooled him giving him a necklace that will tighten and coke Throdis if he says a lie. This necklace is almost impossible to destroy or to remove so Throdis can`t say a lie.
He is described as several times larger than Fog Giants, and enjoys a civil and proud existence. He is cordial to the team of adventurers, though he does still threaten to make a pie out of them. Eventually, he ends up helping them find their way to the Dragon Temple. In return, he asks that they bring him five figurines, a ruby dragon, a marble snow giant, an emerald chimera, an onyx tower, and an agate leviathen. Thronis keeps the dragon, the giant, and the chimera, giving the rest to Seth. Thronis told Seth that wearing his full armor, he could best any Dragon at Wyrmroost in a battle, save perhaps Celebrant himself.
Thronis has a dwarf as a servant, along with Griffins.
He lives on Mt. Stormcrag in Wyrmroost.