Dead Magic Zone

Upgrade	Construction Cost	Construction Time	Improvement
Unbuild	---	---	---
Build	10,000gp	10 days	Able to disable all magic on the island

Access & Availability

The wizard that first created it actually didn't continue with the research and the technology was almost lost, untill one of his pupils found the old research log. The pupil was able to recreate the experiment and learn how to deploy it controlled and with a fixed size. These days most of the high level wizards can create dead magic zones and are willing to do so for about 10,000gp.

Complexity

The dead magic zones can be deployed with a size of up to 5 miles in diameter and for up to a year long. Unfortunately it hasn't been improved to an exact sience so the range and duration can fluctuate a bit and vary from what was intended. It often takes about 10 days to properly deploy.

Discovery

As with many big inventions, the first man-made dead magic zone was created by accident. The wizard researching magic rejuvination, was horrified to find that after one of his experiments he could no longer access his magic and thought he had burned himself out untill he noticed that a couple of magical creatures died as well. He then realized that it wasn't just his magic that was gone, but all magic.