Billy Weaver is a good guy and seems to not have a lot of money. He is also a very briskness person as he describes himself. Billy is a flat character because we don't know much about him.
Old lady she is about 45-50 years old. She has a round pink face and very gentle blue eyes. She is a flat character because she isn't really developed.
"He could see that the paint was peeling from the wood work on their doors and windows, and that the handsome white facades were cracked and blotchy from neglect." (1)
"Excuse my asking , but haven't there been any guests here except them in the last two or three years?... she looked up at him out of the corners of her eyes and gave him another gentle smile. No, my dear, she said Only you."
"The tea tasted faintly of bitter almonds, and he didn't much care for it." This quote hints that the old women put poison in his tea.
The story has a dark and mysterious mood that is created by the characters and the setting in the hotel.