"It was the voice - that awful voice - like a judgment."
Ethel Rogers was one of ten guests invited to Nigger Island. She was the second to die, in the manner laid out in the poem.
Mrs Rogers was the mansion's cook/housekeeper and Thomas Rogers' wife, described as a pale and ghost-like woman who walks in mortal fear. She was dominated by her bullying husband, who coerced her into agreeing to withhold the medicine of a former employer (Miss Jennifer Brady, an elderly spinster) in order that they might collect an inheritance they knew she had left them in her will.
"Thomas Rogers and Ethel Rogers, that on the 6th of May, 1929, you brought about the death of Jennifer Brady."
Ethel and her husband killed their former employer to inherit the money of the elderly woman.
"One overslept himself and then there were Eight."
After the accusations, Mrs. Rogers faints and is given a glass of brandy when she wakes up. Unbeknownst to anyone, however, the murderer slipped a lethal amount of chloral hydrate (a sleeping drug) into the brandy, and Mrs. Rogers dies in her sleep that night.