Haruella was a concoction of the Eriadorans of Pinnath Ceren. The formula was a deep secret, but was thought to include the lichens and aphids from certain tree roots. The hedge wizards of the ancient Eriadorans used Haruella in their infrequent dealings with the Undead. Haruella was highly prized at in Cardolan as a resource against the invasion of the Barrow-downs by wights.

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