Vuerthyl

Vuerthyl was an artificially-created oasis in Anauroch, that was created by the Zhentarim.

Description
The oasis comprised a number of fruit trees that grew atop an underground reservoir. Like many of the Zhentarim-made oases, Vuerthyl was formed using a decanter of endless water.

Geography
Vuerthyl was located in the northwestern region of the Sword, north of the Jackal Hills.

Defenses
The oasis outpost was manned by seven journeyman Zhentarim wizards and a contingent of 20 veteran Zhentilar soldiers.

History
At some point, the Zhents at Vuerthyl discovered a great wealth of naturally-occurring beryl and emeralds hidden away in the reservoir beneath the oasis. While digging beneath the ground they unwittingly released a mind flayer that had been imprisoned beneath the sands, a being that was since out on the loose.