Author's note: This is not the end! The Swedish alphabet has three more letters, so there will be stories for those as well.
Anders' letters reminds Karl of a different time; one that was better for him but worse for Anders, a time with innocent notes meant to inspire hope being snuck into a cell, hidden under a dinner bowl. This time, a time that is worse for Karl and seemingly better for Anders, the notes does inspire hope, but they are not nearly so innocent. And sneaking them past the templars are much more dangerous here than it ever was at Kinloch Hold. They are both careful with what they write, but simply describing the conditions in the Gallows is likely to be enough to earn him a harsh punishment. He is relieved that the letter that mentions things like the underground and zero compromise went in uncaught; he does not even want to think about what the penalty for such a letter could have been. He destroys it quicker than any other.
He is concerned about the slightly manic tinge to some of Anders' words. With mania comes recklessness, and that is part of why he hesitates when Anders wants to get him out, but far from the entire reason. He is worried that a reckless Anders would get himself caught, but he is worried about the mages he would leave behind, as well. While there is not much he can do in here, some small difference is being made.
But surely he could do more for change on the outside.
Is the chance of getting out worth the risk of Anders being caught?
He keeps his eyes on the latest note as it turns to dust in his hand, and swallows. It is true that there is room for absolutely zero compromise when it comes to mages right to finally be treated like people, although it does need a bit of work before it can be used as a rallying cry.
He can not settle for making a small difference any longer.