s to find."

But he did not come back that evening, and when he did come the
next night the boys were not there, having been invited to dine
with Gen. Funston. Had things not happened thus, a part of this
story could never have been written, for it was while dining with
the general that the boys were given a duty to perform, which was
the most arduous of all their adventures in the land of the
Montezumas.

And this was the manner of it.

They were just finishing dinner and Billie was congratulating
himself that he had had his fill of good American cooking, when
an aide announced that a Mexican gentleman, Don Esteban Mendoza,
craved an immediate audience with Gen. Funston.

"I am sure you young gentlemen will excuse me a few minutes,"
said the general, "as Don Esteban is one of the prominent bankers
of the city and I know his business must be of importance."

The boys were glad to accept the proffered excuse and the general
withdrew, leaving them in the company of several members of his
staff, to whom they briefly related their recent adventure. When
they told of the "ambush" there was much amusement.

In the midst of their conversation the general returned
accompanied by Don Esteban.

"These are the young gentlemen to whom I referred," explained the
general, introducing the boys. "They are typical Americans and,
being civilians and speaking Spanish fluently, will be just the
ones to help you in your trouble."

Then to the boys: "Don Esteban has a very delicate mission for
which he asks the assistance of Americans. He wished me to detail
three young officers for the work, but this I do not feel I can
do, as it is strictly a private mission. If you feel that you can
undertake it, he will be glad to explain it to you."

"Anything that you recommend, General, we shall be glad to
undertake," replied Donald, acting as spokesman for the trio.

"Then I shall turn you over to Don Esteban, and as his business
is pressing, I will excuse you if you wish to accompany him
home."

"A thousand thanks, General," said Don Esteban effusively. Then
to the boys: "My automobile is at the door. If you will take
seats in it, we shall be speedily at my house. You will pardon me
if I speak nothing but Spanish, as I know very little English,
although"--with an expressive glance at Gen. Funston--"I hope to
know it better."

Following Don Esteban, they were soon speeding through the
streets and five minutes later entered a handsom