The Admiral looks approving. "When I was your age, I, too, wanted to understand the world," he says. "And this particular issue has been on my mind recently." He gets up and leads you unstopped through hidden passageways in the Deadmines. Some of the passageways used to be too small for the Foe Reaper to fit through, but none of them are any more. The Admiral stops at what looks like a file cabinet. He rifles through some papers, muttering under his breath. Eventually, you hear him say, "I never met the man." "But I did," says a voice from elsewhere beneath your mech. "When I got a little older." Your current employer has just appeared in the same room as the Admiral. She doesn't look any of the ways you've seen her look before. She just looks somewhere between sad and nostalgic. It matches Edwin's expression. "The only living people who knew I existed," she says, picking up the paper, "recognized my face from when I was an infant. I took no pleasure in their deaths. I don't care that they betrayed my parents. I shouldn't have had to kill the Furlbrows. But the Defias legacy...it's all I have left. My father would have valued it over their lives." She doesn't seem to notice you, the Admiral, or even the Foe Reaper any more. "No traitors, ever. We just hold down the fort until everyone here is free from Stormwind, damn them. You're all with me here, right? We do this together."
Affirm your loyalty. While she's distracted, kill her. Ask who she is.