"I took a dislike to him as soon as I saw him." Inspector Dawfield veiled a slight smile with a sheet of foolscap.

"Have you any other reason for suspecting him ?" "Oh, I wouldn't like to say that I suspect Thalassa, or anybody else." Mrs.Pendleton was prompt with this assurance.

"But there are certain things which seem to me to need further investigation.

There's the question of the door being locked on the inside.

It seems to me that the door might have been locked on the outside, and the key dropped in there afterwards.