I took an early opportunity of testing that statement by stationing my friend Monsieur Hastings in the left wing of the building, just outside Mrs. Cavendish's door. 
Mrs. Cavendish's room is in the left wing of the building.
mnli hypothesis: Mrs. Cavendish's room is in the left wing of the building. premise: I took an early opportunity of testing that statement by stationing my friend Monsieur Hastings in the left wing of the building, just outside Mrs. Cavendish's door. 