[--But it's a blessedly short-lived pain. Sebastian notices the glowing orb and turns towards it, lifting his hand from Ciel's eyes as he does, instinctively making sure he's between the orb and Ciel. It's no person using magic - he can detect no presence - so there's no worry of someone having walked in on them, but...]
What...?
[Whatever it is, it's too close to Ciel. Sebastian himself? He can handle whatever it does, so after a moment's apprehension he reaches out to capture the thing in his hand.]