Part 29 (1/2)

”Right as a plumb line. Girl, you're a wonder. Took me four months to learn to read the card; then I didn't have it down as fine as you have. Will you forget it before to-morrow morning?”

”Oh, dear me, no,” she laughed. ”I hope I shall not,” added the girl, sobering a little. ”I shall write the points down as soon as possible after I get back to camp.”

”If you have it down fine in the morning, I'll take you for a long sail to-morrow,” promised the captain, as he a.s.sisted the girls over the side into the waiting small boat.

The Wau-Wau girls voted it the most delightful day they ever had spent. When they had reached camp, however, Harriet heard something that caused her to think even more seriously of what already had happened at Camp Wau-Wau. Before the night was over she was to witness that which would add still further to her perplexity.

CHAPTER XX

OUT OF SIGHT OF LAND

”The man wished to know to whom the boat out in the bay belonged,”

Miss Elting was saying to the Chief Guardian. ”He did not give his name, but asked many questions--who the captain is, where we got him and how, and all about it. The questioner was very mysterious. What do you suppose he could have been trying to find out?”

”Perhaps he was a police officer looking for a stolen boat. I understand a great many boats are stolen along this coast. But we do not have to worry in the present instance. Miss McCarthy's father would not have given us a man who was not right in every way.”

”Oh, no,” answered Miss Elting. ”He seemed perfectly satisfied with what I told him, but he did spend quite a time strolling up and down the beach, out beyond the bar.”

Harriet had overheard the conversation between Miss Elting and Mrs.

Livingston. She smiled at the thought of the light she might possibly shed on the inquiry made by the visitor that afternoon.

The girls were sleepy that night and retired early, all save Harriet Burrell and Tommy, who asked permission to sit out on the bar in front of the cabin, which permission Miss Elting readily granted. But Tommy soon grew weary and stumbled into the cabin, where she floundered about sleepily until she had awakened everyone of her companions.

Soon after the camp had settled down Harriet was conscious of a renewal of the previous night's activity on board the sloop, and in due time the wireless sparks began sputtering from the aerials at the masthead.

They had hardly begun when they abruptly ceased. Her ears caught the sound of the anchor chain sc.r.a.ping through the hawse-hole. The anchor came aboard with a clatter, the mainsail was sent to the peak in short order, the boom swung over and the big sail caught the faint breeze that drifted in from the sea. The sloop, to her amazement, moved out from the bay. No sooner had it cleared the land than a fresh ocean breeze heeled the boat down, sending it rapidly out to sea, where it soon disappeared, sailing without any lights whatever, even the riding light having been taken in before the captain had started out.

”What can it mean?” wondered Harriet Burrell. ”I know something questionable is going on here, but what is it?”

There was no answer to the question. The tide was now booming on the beach and a fresher breeze was springing up, the wind outside having veered until it blew directly into the cove. The girl waited for the return of the ”Sister Sue” until long after midnight, then went to bed. The sky had become overcast and a spattering of raindrops smote her in the face. The prospect was for a drizzly night.

When the camp awakened next morning the sloop was at her anchorage.

What time she had come in Harriet had not the slightest idea, but it must have been early in the morning, because the skipper was just furling the mainsail as the girl emerged from the cabin. The sail was so soaked that he had difficulty in bending it to the boom to which he was trying to house it. But Harriet Burrell said nothing of her discovery at breakfast that morning. Later in the day she confided the secret to Tommy. The latter twisted her face, grimaced and winked wisely. The two girls understood each other.

Captain Bill did not mention having been out with the boat, though Harriet gave him an excellent opportunity to do so that same day. A drenching drizzle fell all day long. Of course, this did not interfere with the camp work. The Camp Girls never ceased their labors for rain or storm of any kind. Later on in the day the Meadow-Brook Girls went aboard the sloop with their guardian, princ.i.p.ally for the reason that Harriet wished to take further lessons in seamans.h.i.+p. She had learned her compa.s.s card well and earned the praise of the grizzled old skipper, but she was ambitious to accomplish greater things.

Several days pa.s.sed, during which the drizzle scarcely ceased for a moment. But during all this time the young woman was not idle, so far as her new interests were concerned. She had asked questions, inquiring the names of things and their uses until she knew them intimately. The ropes and stays, from a ma.s.s of complex, meaningless cordage, had resolved themselves into individual units, each of which had its use and its purpose; the compa.s.s was no longer a mystery, and, during a lull in the drizzle, when the sun had come out on the fifth day, Harriet was permitted to take an observation with the s.e.xtant, the instrument with which mariners take sights to determine their positions at sea.

Harriet was instructed to catch the sun at its zenith, which she did, noting the figures on the scale of the s.e.xtant and from which, under the instruction of the captain, she figured out the lat.i.tude of the sloop. He allowed her to do all the figuring herself. The result was startling. The skipper took her calculations, studied them, frowned, then permitted his face to expand into a wrinkled grin.

”Young lady, did you think this was Noah's Ark!” he demanded.

”No, sir. Wh--y?”

”Because according to your figures the 'Sister Sue' is at this minute located on a line with Mt. Was.h.i.+ngton, off yonder in the White Range.”

Harriet flushed to the roots of her hair as her companions shouted gleefully. At last Harriet Burrell had found something that she could not do. But the captain quickly informed them that to be able to take observations accurately, and then figure them out, required long and close application. Some mariners never were really good at theoretical navigation. Nor had Harriet, as yet, mastered the principles of trigonometry, which branch of mathematics underlies navigation.