convinced from what you had told me that the latter was your son. The first had

walked both ways, but the other had run swiftly, and as his tread was marked in

places over the depression of the boot, it was obvious that he had passed after

the other. I followed them up and found they led to the hall window, where

Boots had worn all the snow away while waiting. Then I walked to the other end,

which was a hundred yards or more down the lane. I saw where Boots had faced

round, where the snow was cut up as though there had been a struggle, and,

finally, where a few drops of blood had fallen, to show me that I was not

mistaken. Boots had then run down the lane, and another little smudge of blood

showed that it was he who had been hurt. When he came to the highroad at the

other end, I found that the pavement had been cleared, so there was an end to

that clue.


“On entering the house, however, I examined, as you remember, the sill

and framework of the hall window with my lens, and I could at once see that

someone had passed out. I could distinguish the outline of an instep where the

wet foot had been placed in coming in. I was then beginning to be able to form

an opinion as to what had occurred. A man had waited outside the window;

someone had brought the gems; the deed had been overseen by your son; he had

pursued the thief; had struggled with him; they had each tugged at the coronet,

their united strength causing injuries which neither alone could have effected.

He had returned with the prize, but had left a fragment in the grasp of his

opponent. So far I was clear. The question now was, who was the man and who was

it brought him the coronet?


“It is an old maxim of mine that when you have excluded the impossible,

whatever remains, however improbable, must be the truth. Now, I knew that it

was not you who had brought it down, so there only remained your niece and the