After breakfast, I decided to go down to the village, and see if Poirot had returned yet; but, before I could start, a wellknown face blocked one of the windows, and the well-known voice said: "Bon jour, mon ami!"
My plan to go down to the village, following my breakfast, was disrupted before I even began. 
mnli hypothesis: My plan to go down to the village, following my breakfast, was disrupted before I even began.  premise: After breakfast, I decided to go down to the village, and see if Poirot had returned yet; but, before I could start, a wellknown face blocked one of the windows, and the well-known voice said: "Bon jour, mon ami!"