The Vault of Dragons is a vault beneath Waterdeep which held half a million gold pieces and other treasures, guarded by a gold dragon named Aurinax. The gold had been embezzled and hidden in the vault by Dagult Neverember. After being discovered and opened by Team TRASH (pandas), the contents of it were returned to Laeral Silverhand, the Open Lord of Waterdeep. The party was also given a portion of the treasure as a reward.