Kinelynn Brighthelm has three major problems.
The first is that she's exiled from her homeland. The exile was as voluntary as they come; when the diabolists won the civil war, she weighed the pros of abandoning her spell-silver mine and fleeing back to her clan (one of the clans that lowlanders called a "kingdom" in the "Five Kings Mountains") versus working with the diabolists, keeping her mine, but being exiled under the laws of her people (which strictly prohibit hiring, working for, or working with diabolists). She was greedy. She kept the mine. How was she supposed to know that in 70 short years the diabolists would ban primary worship of other gods, force worship of Asmodeus, ban precious metal coins, and enslave half her workers just to sell them back to her. At least they hadn't taken her mine away. Well, they had tried, but after two weeks of letting her rot in the dungeon they executed the man who had stolen it from her and gave it back—two mine shafts had collapsed while he tried to get production back up to her numbers.
The second is that she's in prison again, this time for helping a fellow dwarf escape notice by the inquisition. She thought he was just one of the dozens of peasants who slipped up and got caught worshiping an illicit god, or trading illegal books, or had offended some minor nobleman, and so even if they did find him they'd just execute him and not bother coming after everyone who interacted with him. Instead the whole damn inquisition came down on her, so whatever he had done, it was bad. Probably some cleric or paladin fighting the Good fight, though it left her to be executed and possibly maledicted, so how Good the fight could really be was arguable. The Good gods probably didn't account in their plans for innocent bystanders, as long as the innocent bystanders had done enough evil things in their life.
The third is that no one has come by to feed her in a day. She's a dwarf, and can go a lot longer than a day without food and water, but it's still not a good sign. At least she can guess that this is a mistake—it would be unasmodean to kill her this way, forgotten in the middle of a dungeon, when they could instead starve her in public where everyone could see her failure. The question is whether she should break out. If it ruins her law, she'd much rather go to Axis than the Boneyard, or if she's evil, much rather Hell than Abaddon. Plus, it might not even ruin her law! It's not like dying for no reason in a jail cell because someone has forgotten she existed is accepting the duly doled out punishment of her society. But she's a dwarf, and she can survive at least six days without food or water, so she can wait a little longer.