A link between eras.

...But where did the undead come from? It seemed that after the cleansing flame, which many believed to be the final battle, after which the kingdom of God would come to Earth, there should have been no darkness left. But the Necromancers did not perish. Some of them went through the portals. The last one was the great Sandro himself, who carried his wounded student, Lucretia, in his arms. Just as they reached the portal, Gavin Magnus caught up with them, and he had his own score to settle with Sandro. Lightning, a hastily erected shield, and Sandro was defeated. But Lucretia, though dying, saved her teacher. She pushed Sandro into the portal and, with her last strength, placed her shield in the way. Enraged, Magnus, paying no attention to the young Necromancer, rushed after them. The portal