Griselda broke physics multiple times in this. In page 9 she somehow gets her chain through the bars of the prison... This would be fine if both of her hands went between the same bars, or if she had a lot of slack in the chain and could pass it around the bars while still being able to move both hands freely, but that's not what she did. Her arms are clearly going between different bars, and the chain connecting the manacles is connected past the bars... So that means she's chained to the bars, so she shouldn't be able to get out to defend herself in page 13.