Shit. The darkdream tonic: that was the hole in my story. Curse this damned headache, I should have thought of that! He doesn’t react to the brief alarm I know just flashed through my eyes, despite my best efforts to mask it. Either he’s far better at deception than I am, or he can’t read zebras nearly as well as I can. At this stage, I had no way to tell. For now, I’d best operate under the former until I can determine otherwise.