At the height of the Codominium, a Khuzan clan adapted part of an existing natural cave system for use as a hunting lodge. Each autumn, the Khuzdul would travel there to spend a month hunting; the rest of the time the site sat empty. It has remained hidden for more than a millennium.
A comprehensive herbal compendium, and rules for including them into your campaign. This download has been missing for several years but is now available once again.