insisted that his young submarine officers, wherever
they went must be appropriately attired.

In the throng, as M. Lemaire passed, stood one handsomely dressed girl.
Her face, which was interestingly beautiful, had a slightly foreign look.
The jewels that she wore must have cost a fortune. The girl herself was
a finished product in the arts of good breeding and grace.

As M. Lemaire approached her, this girl recognized him with a smile and
a half-quizzical look.

"Ah, good evening, Mademoiselle Nadiboff," murmured M. Lemaire, as he
bent low before the handsome young woman. "I am charmed."

Then he murmured, in a low tone, swiftly:

"Yonder are, the two boys. Jack Benson is the one you will interest.
You, Sara, know the arts of conversation well enough. Make him your
slave, until he is willing to tell all that we want to know. Invite him
to drive with you in your auto car to-morrow. But, bah! You will know
how to make him talk!"

All this was said swiftly, unheard by anyone else. Then M. Lemaire,
having appeared hardly to pause, passed on.

A minute later Mademoiselle Nadiboff was chatting laughingly with
Lieutenant Featherstone.

"Who are those two young men over there?" questioned the young woman.
"Are they of the Navy?"

"No, though related to us in interest," replied the lieutenant. "They
are the captain and chief engineer of the submarine that arrived this
afternoon. Youthful, aren't they?"

"Very," agreed Mademoiselle Sara. "But I like their faces. You will
present me, will you not, Lieutenant?"

"Gladly."

So Jack and Hal found themselves bowing before the handsome young
foreigner. Mlle. Sara had the appearance of being, equally interested
in both of them, though she soon managed, with her social arts, in
drawing somewhat aside with Jack Benson.

And then the music crashed out. One of the young woman's feet began to
tap the floor, her eyes glistening.

"Entrancing music," she murmured.

"If you are not engaged for this dance--" murmured Jack, hesitatingly.
This beautiful creature seemed so superior to the usual run of the human
kind that the submarine boy felt he was too presuming.

"You are very kind," replied the young woman, with a swift smile. "I
shall enjoy it greatly."

Jack took one of her hands in his, resting his other hand lightly at her
waist. A moment later they glided over the polished floor.

"Benson is doing famously," laughed Lieutenant Featherstone,
half-en