Ivanhoj
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The plate appears only when passively waiting. That is, you sit, drink tea, watch TV, and press the "end turn" button. After three or four weeks, the plate appears. If you have nothing to do, it can be a bit boring, of course.
Yes, here's something else. When Zephyr visited Wulfsten, he found an artifact in the dungeon that equalizes the base stats of opponents. I foolishly left it with the dwarves. But I could have used it to bring anyone up to Biara's level...