She turned to Dale.
"Dale, you said you saw a white light shining down from above ?" "Yes," said Dale in a minor voice.
Miss Cornelia rose.
"May I borrow your flashlight, Doctor?
Now that fool detective is out of the way," she continued some what acidly, "I want to do something." The Doctor gave her his flashlight with a stare of bewilderment.

She took it and moved into the alcove.
"Doctor, I shall ask you to stand at the foot of the small staircase, facing up." "Now ?" queried the Doctor with some reluctance.
"Now, please." The Doctor slowly followed her into the alcove and took up the position she assigned him at the foot of the stairs.
"Now, Dale," said Miss Cornelia briskly, "when I give the word, you put out the lights here--and then tell me when I have reached the point on the staircase from which the flashlight seemed to come.

All ready ?" Two silent nods gave assent.

Miss Cornelia left the room to seek the second floor by the main staircase and then slowly return by the alcove stairs, her flashlight poised, in her reconstruction of the events of the crime.

At the foot of the alcove stairs the Doctor waited uneasily for her arrival.