There is a tradition amongst the alchemists of old. It is told of an emerald tablet that upon which was inscribed all the secrets and solutions to the mysteries of alchemy. Many have sought it, and few ever claim to have found it.
In their travels and pursuits, the brothers seek this, but only after much trouble and some luck did they ever learn what it was. In fact, they had chanced upon it well before they knew what it was. For the emerald tablet was not a stone inscription that could be carried, rather it was a place: A land. In fact it was the Emerald Isle, and it housed the knowledge of these people, ready to be found by anyone who was prepared to live according to the standard and find its hidden wisdom.