“But,” continued the magistrate, “if I cannot find one of the words in the body of the document, I might at least try my hand at the beginning and end of each paragraph. There may be a chance there that I ought not to miss.”

And impressed with this idea Judge Jarriquez successively tried if the letters which commenced or finished the different paragraphs could be made to correspond with those which formed the most important word, which was sure to be found somewhre, that of Dacosta.

He could do nothing of the kind.

In fact, to take only the last paragraph with which he began, the formula was:

P = D h = a y = c f = o s = s l = t y = a

Now, at the very first letter Jarriquez was stopped in his calculations, for the difference in alphabetical position between the d and the p gave him not one cipher, but two, namely, 12, and in this kind of cryptograph only one letter can take the place of another.

It was the same for the seven last letters of the paragraph, p s u v j h d, of which the series also commences with a p, and which in no case could stand for the d in Dacosta, because these letters were in like manner twelve spaces apart.

So it was not his name that figured here.

The same observation applies to the words arrayal and Tijuco, which were successively tried, but whose construction did not correspond with the cryptographic series.

After he had got so far, Judge Jarriquez, with his head nearly splitting, arose and paced his office, went for fresh air to the window, and gave utterance to a growl, at the noise of which a flock of hummingbirds, murmuring among the foliage of a mimosa tree, betook themselves to flight. Then he returned to the document.