Magic (Magic #14)

The planeswalkers journey to Locthwain to find the Cauldron of Eternity, and finally uncover the identity of the specter haunting Niko's steps. Many knights have fallen in their quest for the Cauldron-if our heroes find it, they must prove their worth. But if they can succeed, they just might discover the identity of the specter... and the dangerous implications of that knowledge!