James shook his head. "That's perfectly beastly," he said in a low voice.
"It gets worse," Erebus admitted stoically.
The gathering moved to the last tapestry. It glowed in the candlelight, somehow both more vibrant and more ghastly than the others. The scene showed a moonlit forest, dominated by a huddle of the dark-robed witches and wizards. They seemed to be bent over something, obscuring it.
"What are they doing?" Ralph asked tentatively, frowning at the tall image. "What's all that silvery stuff running all over the ground?"
"Alas," Erebus replied darkly, "according to the Ballad, the evil witches and wizards realized that their plan had been foiled. They had murdered their only hope of conquering the other dimensions and mortally wounded the creature that might have granted them powers beyond their dreams. In a final, ghastly attempt to harness the magic of that hidden realm, they fell upon the wounded unicorn and consumed its blood, still warm from its failing heart. As they feasted upon it, piteously, the poor beast died.
"Unmoved by the extremity of their crimes and grown cruelly powerful by their draught of the unicorn's blood, these witches and wizards turned into legends of horror for decades thereafter. They had become virtually unstoppable, you see, darkly magical and inhumanly strong. They were known to strike terror into the hearts of all they met since both their eyes and mouths glowed with a pale silvery light, forever tainted by the blood of their prey. To cover this, they fashioned masks of metal, even more terrible than their human faces, and wore them as signs of their fraternity. For nearly a century, these beasts in human form ruled with mayhem, torture, and murder, known universally by the name that they had chosen for themselves, a name that explained both the source of their powers and the depths of their depravity. 'Death Eaters', they called themselves; a word that became synonymous with dark ambition, inhumanity, and power at any cost."
"They were the original Death Eaters?" James asked faintly, staring up at the horrible image. "But… Voldemort…?"
"The devil cannot create," Erebus said evenly. "He can only pervert. The villain your age knew as Voldemort adopted the policies of these, his spiritual brethren. He took their name and claimed it for himself, but he did not invent it."
Shuddering, Wentworth asked, "So, what ever became of those guys?"
"Over the decades, heroes of stout heart and courage hunted them down," Erebus answered, nodding gravely in his frame. "Many knights died in the attempt, but one by one, the Death Eaters were dispatched, their heads cut from their shoulders and buried while their bodies were burned to dust. In the end, only one remained, a woman named Proserpine. She was finally cornered in her secret citadel, deep in a tractless forest. There, rather than facing her pursuers, she took her own life, leaving her own severed head smiling on the doorstep, its eyes still glowing with dead malevolence. Her body, the legends claim, was never found."
Ralph shivered. "Hellooo, nightmares," he squeaked.
"What about the unicorn's body?" Wentworth asked, shaking his head. "Didn't they try to preserve that somehow?"
Erebus scoffed lightly. "The Death Eaters cared not for preserving the corpse of their victim. According to legend, however, explorers did eventually find the poor creature's skeleton, complete with its magical horn. Rather than burying it or bringing it back, they decided to leave it as a memorial, hidden within a seamless blanket of unplottability, forever at rest. They did bring back one thing, though, as proof of their discovery: a single silver horseshoe, which they claimed was still attached to the beast's right front hoof, gleaming and uncorrupted. For centuries, that very horseshoe was a symbol of humility and regret, kept safe by a council of knights whose sole job was to watch for the appearance of any more delegates from the dimension beyond. If such a delegate were ever to appear, the horseshoe was to be returned to them in homage, a humble, insufficient apology for the crime that had been committed against their people."
"Wow," Zane said softly, somber for once. "So are those knights still out there somewhere, guarding the horseshoe and watching for anyone from that other dimension?"
"Alas, no," Erebus sighed. "My family was the last of those knights, and I was the last of my family, come to this new country in the hopes of finding a permanent hiding place for the relic. As a result, the horseshoe was granted to this college, an heirloom and a sacred trust. Unfortunately, by then, its significance had been all but lost. For many years, it was preserved in the museum atop the Tower of Art, well guarded but forgotten. Now, I suspect, none even remember that it was ever there."
"Why?" James asked, blinking suddenly. "What happened to it? Where is it now?"
Erebus chuckled ruefully. "That, as they used to say in my time, is the thousand Drummel question. It seems that sometime after my own death, the horseshoe was borrowed from the museum and never returned. Obviously, I myself am less than clear on the details—we portraits have rather a difficult time absorbing much of what happens beyond our own deaths—but I believe that the horseshoe went into the library of a trusted private collector. I suppose I should care more about it, seeing as I was the last of a long line of those whose duty was to protect the relic. But as I said, death offers its own unique perspective, one facet of which is that it becomes exceedingly easy not to give a damn. I can only hope that the horseshoe has been well cared for. Or, at the very least, been tossed into a very, very deep well."
James' eyes had grown wide as he listened. Silently, he turned to look at Ralph, and then Zane. Both of them returned his look of speechless realization.
"What?" Wentworth said, frowning. "You three look like somebody just shot Freezing Charms into your underpants."
"Are you thinking what I'm thinking?" James asked quietly.
Zane nodded. "I'm thinking I bet I know who the mysterious patron is that 'borrowed' the old lucky horseshoe."
"But how would Magnussen have figured it all out?" Ralph asked. "We've got the portrait to explain everything, but Magnussen didn't get anything from him, apparently."
"Magnussen wouldn't have needed anyone to explain it!" James whispered, flush with excitement. "Remember what Franklyn told us? Magnussen was a guy who loved stories! He'd probably already read all about the legend of the Rider!"
Zane nodded. "Then, later, when he's out prowling the halls here in the castle, he spies these tapestries and starts putting everything together. He connects the tapestries with the silver horseshoe up in the Tower of Art and bammo, he's got the dimensional key he's been dreaming of all along!"
"Wow," Ralph laughed a little nervously. "So the riddle was right after all. The truth walked the halls of Erebus Castle, right here. The truth was Magnussen and the tapestries put together!"