And Then There Were None

Emily Brent was poisoned.

"How did she die, doctor? She was all right when we left her here!"

Armstrong's attention was riveted on a mark on the right side of the neck.

He said:

"That's the mark of a hypodermic syringe."

There was a buzzing sound from the window. Vera cried:

"Look - a bee - a bumblebee. Remember what I said this morning!"

Armstrong said grimly:

"It wasn't that bee that stung her! A human hand held the syringe."

The judge asked:

"What poison was injected?"

Armstrong answered:

"At a guess, one of the cyanides. Probably Potassium Cyanide, same as Anthony Marston. She must have died almost immediately by asphyxiation."