I was looking at him fixedly as the diabolical nature of what must
have happened sank into my mind. Here was a poison that defied
detection. I could see by the look on Craig's face that that
problem, alone, was enough to absorb his attention. He seemed
fully to realize that we had to deal with a criminal so clever
that he might never be brought to justice.
He untied the package which Mrs. Northrop had given him and
glanced quickly over one after another of the letters.
"Ah!" he exclaimed, fairly devouring one dated at Mitla. "Listen--
it tells about Northrop's work and goes on:
"'I have been much interested in a cavern, or subterraneo, here,
in the shape of a cross, each arm of which extends for some twelve
feet underground. In the center it is guarded by a block of stone
popularly called "the Pillar of Death." There is a superstition
that whoever embraces it will die before the sun goes down.
"'From the subterraneo is said to lead a long, underground passage
across the court to another subterranean chamber which is full of
Mixtec treasure. Treasure hunters have dug all around it, and it
is said that two old Indians, only, know of the immense amount of
buried gold and silver, but that they will not reveal it.'"
I started up. Here was the missing link which I had been waiting
for.
"There, at least, is the motive," I blurted out. "That is why
Bernardo was so reticent. Northrop, in his innocence of heart, had
showed him that inscription."
Kennedy said nothing as he finally tied up the little packet of
letters and locked it in his safe. He was not given to hasty
generalizations; neither was he one who clung doggedly to a
preconceived theory.
It was still early in the afternoon. Craig and I decided to drop
into the museum again in order to see Doctor Bernardo. He was not
there and we sat down to wait.
Just then the letter box in the door clicked. It was the postman
on his rounds. Kennedy walked over and picked up the letter.
The postmark bore the words, "Mexico City," and a date somewhat
later than that on which Northrop had left Vera Cruz. In the lower
corner, underscored, were the words, "Personal--Urgent."
"I'd like to know what is in that," remarked Craig, turning it
over and over.
He appeared to be considering something, for he rose suddenly and
shoved the letter into his pocket.
I followed, and a few moments later, across the campus in his
laboratory, he was working quickly over an X-ray apparatus. He had
placed the letter in it.
"These are what are known as 'low' tubes," he explained. "They
give out 'soft rays.'" He continued to work for a few moments,
then handed me the letter.
"Now, Walter," he said, "if you will just hurry back to the museum
and replace that letter, I think I will have something that will
astonish you--though whether it will have any bearing on the case,
remains to be seen."
"What is it?" I asked, a few minutes later, when I had rejoined
him, after returning the letter. He was poring intently over what
looked like a negative.
"The possibility of reading the contents of documents inclosed in
a sealed envelope," he replied, still studying the shadowgraph
closely, "has already been established by the well-known English
scientist, Doctor Hall Edwards. He has been experimenting with the
method of using X-rays recently discovered by a German scientist,
by which radiographs of very thin substances, such as a sheet of
paper, a leaf, an insect's body, may be obtained. These thin
substances through which the rays used formerly to pass without
leaving an impression, can now be radiographed."
I looked carefully as he traced out something on the negative. On
it was easily possible, following his guidance, to read the words
inscribed on the sheet of paper inside. So admirably defined were
all the details that even the gum on the envelope and the edges of
the sheet of paper inside the envelope could be distinguished.
"Any letter written with ink having a mineral basis can be
radiographed," added Craig. "Even when the sheet is folded in the
usual way, it is possible by taking a radiograph stereoscopically,
to distinguish the writing, every detail standing out in relief.
Besides, it can be greatly magnified, which aids in deciphering it
if it is indistinct or jumbled up. Some of it looks like mirror
writing. Ah," he added, "here's something interesting!"
Together we managed to trace out the contents of several
paragraphs, of which the significant parts were as follows:
I am expecting that my friend Senora Herreria will be in New York
by the time you receive this, and should she call on you, I know
you will accord her every courtesy. She has been in Mexico City
for a few days, having just returned from Mitla, where she met
Professor Northrop. It is rumored that Professor Northrop has
succeeded in smuggling out of the country a very important stone
bearing an inscription which, I understand, is of more than
ordinary interest. I do not know anything definite about it, as
Senora Herreria is very reticent on the matter, but depend on you
to find out if possible and let me know of it.
According to the rumors and the statements of the senora, it seems
that Northrop has taken an unfair advantage of the situation down
in Oaxaca, and I suppose she and others who know about the
inscription feel that it is really the possession of the
government.
You will find that the senora is an accomplished antiquarian and
scholar. Like many others down here just now, she has a high
regard for the Japanese. As you know, there exists a natural
sympathy between some Mexicans and Japanese, owing to what is
believed to be a common origin of the two races.
In spite of the assertions of many to the contrary, there is
little doubt left in the minds of students that the Indian races
which have peopled Mexico were of Mongolian stock. Many words in
some dialects are easily understood by Chinese immigrants. A
secretary of the Japanese legation here was able recently to
decipher old Mixtec inscriptions found in the ruins of Mitla.
Senora Herreria has been much interested in establishing the
relationship and, I understand, is acquainted with a Japanese
curio dealer in New York who recently visited Mexico for the same
purpose. I believe that she wishes to collaborate with him on a
monograph on the subject, which is expected to have a powerful
effect on the public opinion both here and at Tokyo.
In regard to the inscription which Northrop has taken with him, I
rely on you to keep me informed. There seems to be a great deal of
mystery connected with it, and I am simply hazarding a guess as to
its nature. If it should prove to be something which might
interest either the Japanese or ourselves, you can see how
important it may be, especially in view of the forthcoming mission
of General Francisco to Tokyo.
"This is becoming quite an international affair," he remarked
finally, pausing before me, his hat on. "Would you like to relax
your mind by a little excursion among the curio shops of the city?
I know something about Japanese curios--more, perhaps, than I do
of Mexican. It may amuse us, even if it doesn't help in solving
the mystery. Meanwhile, I shall make arrangements for shadowing
Bernardo. I want to know just how he acts after he reads that
letter."
He paused long enough to telephone his instructions to an uptown
detective agency which could be depended on for such mere routine
work, then joined me with the significant remark: "Blood is
thicker than water, anyhow, Walter. Still, even if the Mexicans
are influenced by sentiment, I hardly think that would account for
the interest of our friends from across the water in the matter."
I do not know how many of the large and small curio shops of the
city we visited that afternoon. At another time, I should have
enjoyed the visits immensely, for anyone seeking articles of
beauty will find the antique shops of Fifth and Fourth Avenues and
the side streets well worth visiting.
We came, at length, to one, a small, quaint, dusty rookery, down
in a basement, entered almost directly from the street. It bore
over the door a little gilt sign which read simply, "Sato's."
As we entered, I could not help being impressed by the wealth of
articles in beautiful cloisonne enamel, in mother-of-pearl,
lacquer, and champleve. There were beautiful little koros, or
incense burners, vases, and teapots. There were enamels incrusted,
translucent, and painted, works of the famous Namikawa, of Kyoto,
and Namikawa, of Tokyo. Satsuma vases, splendid and rare examples
of the potter's art, crowded gorgeously embroidered screens
depicting all sorts of brilliant scenes, among others the sacred
Fujiyama rising in the stately distance. Sato himself greeted us
with a ready smile and bow.
"I am just looking for a few things to add to my den," explained
Kennedy, adding, "nothing in particular, but merely whatever
happens to strike my fancy."
"Surely, then, you have come to the right shop," greeted Sato. "If
there is anything that interests you, I shall be glad to show it."
"Thank you," replied Craig. "Don't let me trouble you with your
other customers. I will call on you if I see anything."
For several minutes, Craig and I busied ourselves looking about,
and we did not have to feign interest, either.
"Often things are not as represented," he whispered to me, after a
while, "but a connoiseur can tell spurious goods. These are the
real thing, mostly."
"Not one in fifty can tell the difference," put in the voice of
Sato, at his elbow.
"Well, you see I happen to know," Craig replied, not the least
disconcerted. "You can't always be too sure."
A laugh and a shrug was Sato's answer. "It's well all are not so
keen," he said, with a frank acknowledgment that he was not above
sharp practices.
I glanced now and then at the expressionless face of the curio
dealer. Was it merely the natural blankness of his countenance
that impressed me, or was there, in fact, something deep and dark
hidden in it, something of "East is East and West is West" which I
did not and could not understand? Craig was admiring the bronzes.
He had paused before one, a square metal fire-screen of odd
design, with the title on a card, "Japan Gazing at the World."
It represented Japan as an eagle, with beak and talons of
burnished gold, resting on a rocky island about which great waves
dashed. The bird had an air of dignity and conscious pride in its
strength, as it looked out at the world, a globe revolving in
space.
"Do you suppose there is anything significant in that?" I asked,
pointing to the continent of North America, also in gold and
prominently in view.
"Ah, honorable sir," answered Sato, before Kennedy could reply,
"the artist intended by that to indicate Japan's friendliness for
America and America's greatness."
He was inscrutable. It seemed as if he were watching our every
move, and yet it was done with a polite cordiality that could not
give offense.
Behind some bronzes of the Japanese Hercules destroying the demons
and other mythical heroes was a large alcove, or tokonoma,
decorated with peacock, stork, and crane panels. Carvings and
lacquer added to the beauty of it. A miniature chrysanthemum
garden heightened the illusion. Carved hinoki wood framed the
panels, and the roof was supported by columns in the old Japanese
style, the whole being a compromise between the very simple and
quiet and the polychromatic. The dark woods, the lanterns, the
floor tiles of dark red, and the cushions of rich gold and yellow
were most alluring. It had the genuine fascination of the Orient.
"Will the gentlemen drink a little sake?" Sato asked politely.
A peculiar, almost white-skinned attendant answered, and a moment
later produced four cups and poured out the rice brandy, taking
his own quietly, apart from us. I watched him drink, curiously. He
took the cup; then, with a long piece of carved wood, he dipped
into the sake, shaking a few drops on the floor to the four
quarters. Finally, with a deft sweep, he lifted his heavy mustache
with the piece of wood and drank off the draft almost without
taking breath.
He was a peculiar man of middle height, with a shock of dark,
tough, woolly hair, well formed and not bad-looking, with a robust
general physique, as if his ancestors had been meat eaters. His
forehead was narrow and sloped backward; the cheekbones were
prominent; nose hooked, broad and wide, with strong nostrils;
mouth large, with thick lips, and not very prominent chin. His
eyes were perhaps the most noticeable feature. They were dark
gray, almost like those of a European.
As Otaka withdrew with the empty cups, we rose to continue our
inspection of the wonders of the shop. There were ivories of all
descriptions. Here was a two-handled sword, with a very large
ivory handle, a weirdly carved scabbard, and wonderful steel
blade. By the expression of Craig's face, Sato knew that he had
made a sale.
Craig had been rummaging among some warlike instruments which
Sato, with the instincts of a true salesman, was now displaying,
and had picked up a bow. It was short, very strong, and made of
pine wood. He held it horizontally and twanged the string. I
looked up in time to catch a pleased expression on the face of
Otaka.
"Most people would have held it the other way," commented Sato.
Craig said nothing, but was examining an arrow, almost twenty
inches long and thick, made of cane, with a point of metal very
sharp but badly fastened. He fingered the deep blood groove in the
scooplike head of the arrow and looked at it carefully.
"I'll take that," he said, "only I wish it were one with the
regular reddish-brown lump in it."
"Oh, but, honorable sir," apologized Sato, "the Japanese law
prohibits that, now. There are few of those, and they are very
valuable."
"I suppose so," agreed Craig. "This will do, though. You have a
wonderful shop here, Sato. Some time, when I feel richer, I mean
to come in again. No, thank you, you need not send them; I'll
carry them."
We bowed ourselves out, promising to come again when Sato received
a new consignment from the Orient which he was expecting.
"That other Jap is a peculiar fellow," I observed, as we walked
along uptown again.
"He isn't a Jap," remarked Craig. "He is an Ainu, one of the
aborigines who have been driven northward into the island of
Yezo."
"Yes. Generally thought, now, to be a white race and nearer of kin
to Europeans than Asiatics. The Japanese have pushed them
northward and are now trying to civilize them. They are a dirty,
hairy race, but when they are brought under civilizing influences
they adapt themselves to their environment and make very good
servants. Still, they are on about the lowest scale of humanity."
"They are a most inoffensive and peaceable people usually," he
answered, "good-natured and amenable to authority. But they become
dangerous when driven to despair by cruel treatment. The Japanese
government is very considerate of them--but not all Japanese are."