The letter from Lord Daquarius is an item found during The Death of Chivalry, in Captain Dulcin's wardrobe in the Black Knights' Fortress. It shows Lord Daquarius conspiring with Lensig to poison Dulcin.
I have recommended you to Captain Dulcin, as we agreed.
He'll provide whatever supplies you deem necessary.
I have ensured that he will extend you every courtesy. He suspects nothing.
Strength through chaos, my witch,
Leader of the Black Knights
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