That was the breadth of a puddle on the garden walk which he had evidently walked across.
Patent-leather boots had gone round, and Square-toes had hopped over.
There is no mystery about it at all.

I am simply applying to ordinary life a few of those precepts of observation and deduction which I advocated in that article.

Is there anything else that puzzles you ?" "The finger nails and the Trichinopoly," I suggested.
"The writing on the wall was done with a man's forefinger dipped in blood.

My glass allowed me to observe that the plaster was slightly scratched in doing it, which would not have been the case if the man's nail had been trimmed.

I gathered up some scattered ash from the floor.
It was dark in colour and flakey--such an ash as is only made by a Trichinopoly.