Isle of the Mists Quest/Spoiler

Go to Plains of Havoc and enter the Magic Forcefield located , near some Orcs. You may find Giant Spiders on the way. You will be teleported to the Isle of the Mists, there you will find a Box and a Drawer on the ground floor, containing 2 Small Emeralds and a Book. Some times, Fernfang may spawn in the upper floor.