|“|| I’m torn in two by my thoughts. I sensed a great magic protecting the island to
keep strangers away, at the same time I felt like something was inviting and pulling me towards the island.
— Alarast Sage of the Royal Library of Nothampton 
Isle of Nex is an island located in The Northern Realms, on which story of Legend of Grimrock II takes place. Magister Alarast wrote in his diary  the island is believed to be cursed because no ship sailing near it has ever returned. It is covered in thick fog, there are a lot of shipwrecks and compasses stop working in its area. The island in fact serves as a hiding place for words of creation that keep the universe in existence, as it was determined to be the safest place on earth.The island presents its visitors with trials to test them in order to find the best guardians for the words of creation among them, as mentioned in Island Master's Testament.  That is the reason why there are so many puzzles. The puzzles were likely designed by puzzle-writers whose graves can be found in the island's Cemetery.  There are also stone philosophers, large head statues, all around the island to help the survivors find the right direction when they are lost.
There is a number of memorable structures on the island including:
- Castle Nex - The highest reaching structure and dwelling of The Island Master. Its gates are closed until the statues in front of the gates are given essences of four basic elements. Inside there are libraries and texts of precious knowledge.
- Pyramid of Umas - Once home to native inhabitants of the island who were sealed and imprisoned inside by The Island Master after his betrayal.
- five shrines of the five basic elements, the fifth one being hidden under ground