It might have worked if Sephiroth wasn't paranoid about the seals being ambush points. He always kept his senses open when he came through. He didn't dare do otherwise, not after he'd been caught once too often by a seal that had been inadequately guarded. This one had its guards, but they weren't the only ones around, and he started int he direction of the small flare he'd felt.

It was familiar, and there should be no one familiar out here. "This duty is turning up all kinds of surprises. Come out. There's really no reason to hide when I know you're there."