[Draco jerks around anyway, regardless of how cautious William is. The voice is unfamiliar and he's a bit frazzled, so he's got his wand out in front of him as he turns.

He doesn't do anything, though, just eyes the boy in front of him warily for a moment before he straightens out of his defensive position and lets the wand drop a little.]

I saw it.

[Frowns, his brow furrowing.]

But this isn't where I was expecting to be, so I suppose a lot of it went in one ear and out the other. It's all rather a shock.