Reading Sharing Knife for the 4th or 5th time, and just finished the part where Dag sees inside the woman with appendicitis. I started thinking that was very similar to what Pen&Des can do. Then I realized that when Dag gives a 'ground reinforcement', it's almost exactly the same as Pen giving a dose of 'uphill magic'. Imagine my excitement! Have you ever thought that there are people who can actually do that?