"Oh, yes. In here it will only be visible to me, but out there... well, let’s just say it would be a bit harder to pull another stunt like you did with Weasley. It also establishes a connection between our minds. Normally, it’s just one-way. Because the slaves are Muggles. It allows their masters to read their minds at levels far beyond normal Legilimency. What with you being a witch in our case, it will work both ways. I’m fine with that. Spend as much time in my head as you want as far as I’m concerned, I have nothing to hide. But it’s irreversible." He looked her dead in the eye when he continued: "Safe word?" He added a malicious smile to emphasize his point.  