ies for us to solve, one the finding of
that mysterious box and the other the mystery of the wireless on the
'Sister Sue.' I would suggest that you don't say a word about it to
any one to-morrow. Don't ask any questions, either--leave that to
me--but keep your eyes open while you are on board. Perhaps we may
discover something that we overlooked there to-day. Wireless on the
'Sister Sue'! I don't understand it at all. Be very careful that you
do not wake up the others when you go in. Make sure that you don't
fall over a cot and startle the girls."

"Yeth, I'll be careful."

Harriet remained outside while Grace was getting herself back to bed,
but the former darted in quickly upon hearing a crash in the cabin,
followed by a scream from Margery. Tommy had stumbled against Buster's
bed and fallen across it and on the sleeping stout girl. But Harriet,
knowing it would not do for the girls to know that two of their number
had been mooning out-of-doors, darted into her own cot, and before
they realized that she had just got in, was sitting up in bed
demanding to know what all the disturbance was about.

"Tommy, have you been walking in your sleep?" demanded Miss Elting.

"Yeth, I've been walking, I gueth. Excuthe me, Buthter. If you hadn't
been in my way I wouldn't have fallen over you. Good night, friendth."
Tommy tumbled into bed, muttering to herself. Harriet did not go to
sleep at once. She lay for some little time thinking over the strange
occurrences of the night, and wondering what it could mean. Then, her
companions having gone to sleep, she too settled down for the few
hours that remained before the rising horn blew.

Her first thought, upon awakening in the morning, was for the sloop.
Quickly scrambling out of bed, she stepped to the door and gazed out
on the bay. The "Sister Sue" lay at her anchorage motionless,
glistening in the bright rays of the morning sunlight, handsomer,
Harriet thought, as she stood admiring the pretty craft, than she had
appeared on the previous day.

The Camp Girls were filled with expectations of what was before them.
They were to sail shortly after ten o'clock, and for many of them it
was to be the first sail they had ever enjoyed. Breakfast was eaten
and the camp put in order in record time that morning. Promptly at ten
o'clock Captain Billy rowed the small boat ashore. He dragged down
some trees which he cut, thus making a crude pier for the girls to
walk out on, thus enabling h