8. An explanation of how old Poindexter came to appear on the scene so soon after the event. His words as overheard were: "It is Amos's son, not Amos!" Did he not know whom he was to meet in this house? Was the condition of the man lying before him with a cross on his bosom and a dagger in his heart less of a surprise to him than the personality of the victim?
9. Remember the conclusions we have drawn from Bartow's pantomime. Mr. Adams was killed by a left-handed thrust. Watch for an acknowledgment that the young woman is left-handed, and do not forget that an explanation is due why for so long a time she held her other arm stretched out behind her.
10. Why did the bird whose chief cry is "Remember Evelyn!" sometimes vary it with "Poor Eva! Lovely Eva! Who would strike Eva?" The story of this tragedy, to be true, must show that Mr. Adams knew his brother's bride both long and well.
11. If Bartow is, as we think, innocent of all connection with this crime save as witness, why does he show such joy at its result? This may not reasonably be expected to fall within the scope of Thomas Adams's confession, but it should not be ignored by us. This deaf-and-dumb servitor was driven mad by a fact which caused him joy. Why?
12. Notice the following schedule. It has been drawn up after repeated experiments with Bartow and the various slides of the strange lamp which cause so many different lights to shine out in Mr. Adams's study:
White light—Water wanted.
Green light—Overcoat and hat to be brought.
Blue light—Put back books on shelves.
Violet light—Arrange study for the night.
Yellow light—Watch for next light.
Red light—Nothing wanted; stay away.
The last was on at the final scene. Note if this fact can be explained by Mr. Adams's account of the same.
With these points in our mind, let us peruse the history of this crime and of the remote and possibly complicated causes which led to it.