Haarl's Treatise on Dragonkind
The Haarl's Treatise on Dragonkind is one of the three items in the Draconic Knowledge Collection.
This item is used to complete the Spirit of the Dragon task in the Tyranny of Dragons Campaign. Completion of this task allows for selection of the fourth Tyranny of Dragons Boon.
This tome is required to unlock the fourth boon in the Tyranny of Dragons campaign.