Not with thirteen brothers and an ocean surrounding his island kingdom making sure he can't get out.

[She says this... a lot more tactfully than she said anything during her conversation with The Baladeer, but there's still a slight edge to her voice that Varian hasn't heard yet.]

... He's smart. And I wouldn't put it past him to do something cruel out of some petty kind of revenge. But he's from our world, and he has no kind of magic or technological knowledge. [As far as she knows???] So I highly doubt he could do anything like this, with so many people from places and times far more advanced than ours.