Well Felix died in Iron and Magic. So I’m guessing it’s one of Elara’s people. I also think that losing one of her advisors would cause more impact. Hugh doesn’t want to lose his people, but they’re soldiers who are regularly in the midst of battle. Death is a known risk. But Elara’s people, the Dogs are there to protect them so I think Hugh might take it as a personal failure if one of her advisors dies. And Elara would be sad for the loss of one of Hugh’s Centurions, but Dugas and ...witch lady whose name escapes me at the moment... are her surrogate parents; the rest of her people are her family.