"The gauge tells that," replied Jack. "But I will ask you to excuse
me from describing it, as I wish to keep my mind on the running of the
boat. Mr. Hastings will oblige you; or, I don't doubt, one of the
naval officers will."

Even this momentary distraction, however, had given Miss Peddensen time
to slip something out of one of her wide sleeves into her lap. And now
the young Swedish woman sat so that the object taken from her sleeve was
concealed behind the woman who sat next to her.

It wasn't many moments ere Jack noted some thing about the young Swedish
woman that caused the young skipper to turn, every now and then, for a
swift though hidden glance in her direction.

"What on earth is Miss Peddensen doing?" wondered the submarine boy.
"Hang it, I believe she's up to something that she ought not to be
doing!"

Through he did not turn and walk in her direction, Jack, thereafter,
kept the young Swedish woman much more under secret observation.

"By Jove, I know what she's doing, now," muttered the young skipper.
"That movement of her elbow betrays her, and her eyes are fixed, much of
the time on her lap. If she isn't sketching something, on the sly, then
my eyesight isn't as good as it used to be!"

Captain Jack Benson found himself quickly aquiver with suspicion and
indignation.