Playing around with a headcanon that Hawke gave this particular copy to a young apprentice when he and Anders were going around helping Circles free themselves in the Marches.
Me too! I think it's the thing I asked for with the most emotional impact. The other two were his ice staff from home and a jar of rocks he collected from a bunch of planets in Drift Fleet
The book, though, especially with the headcanon of having given it to an apprentice they helped to free, is tied up in his being torn about wanting to go home or not.