Most of the letter was written as nonsense, making Arthur spend almost half an hour pondering it. It might be that Oriole used such a paraphrasing to avoid detection by Sier or someone from Mistletoe.
If Arthur guessed right, Sier wanted to seize control of the union. The first line was an introduction, and the second was the topic of this letter. Once Arthur read the word 'see,' he knew what Oriole hinted.
As for the next part, Arthur did not understand what he meant by freedom and its sheath. Thus, he summoned the other person who knew Oriole and even admired him, Maryam. After several minutes of reading the letter, the runemaster leaned back in her chair.
"I have no idea either," said Maryam with a frown. "Freedom could mean anything; if we don't understand it, we will never know what the rest of the letter means. Oriole seems to be warning us about something."
