Mr. Poirot, here, will show me the way." As they all went out of the room, Poirot turned and made me a sign to follow him upstairs. 
There is more than one level in the building that Poirot is in.
mnli hypothesis: There is more than one level in the building that Poirot is in. premise: Mr. Poirot, here, will show me the way." As they all went out of the room, Poirot turned and made me a sign to follow him upstairs. 