"According to legend, it gave its owners control over planar travel. But only pairs of wizards bound by unbrea

"According to legend, it gave its owners control over planar travel. But only pairs of wizards bound by unbreakable ties could use it. While one of them traveled the planes, the other was his 'anchor' in our world, and they could switch between. Do you see now why we so desperately wish to find the Disk? It might help us understand how the 'switch' between me and Kanerah works. And it should make our divine patron happy. – Nethys and his assistants value the desire to understand the mysteries of magic above all else."