The Dain Curse by Dashiell Hammett

I went back to the lobby, to a recess where I had seen a telephone. The phone was there, but dead. I put it down and set out for Minnie Hershey's room on the sixth floor. I hadn't been able to do much with the mulatto so far, but she was apparently devoted to her mistress, and, with the telephone useless, I needed a messenger.

I opened the mulatto's door -- lockless as the others -- and went in, closing it behind me. Holding a hand over the lens of my flashlight, I snapped it on. Enough light leaked through my fingers to show me the brown girl in her bed, sleeping. The windows were closed, the atmosphere heavy, with a faint stuffiness that was familiar, the odor of a place where flowers had died.