"And expecting to pour in a volley, while we were exposed above the bulwarks," replied Nathan.

"Exactly, lad," a.s.sented Barnabas, "only we didn't give 'em a chance."

Turning to Cutbush, he added: "Better take the rudder, man; we're nearly at the falls."

Just then Mrs. Cutbush, who was in the bow, uttered a cry, and a tongue of fire was seen to leap up from the bed of dry gra.s.s in the middle of the boat. Evidently a bit of wadding had lain there smouldering, and now a breeze had fanned it into a blaze.

G.o.dfrey was nearest, but before he could get to the spot the fire reached an open powderhorn that lay in the gra.s.s. It blew up with a dull report, and instantly the whole bed was a ma.s.s of hissing, roaring flames. And in the very midst of the blaze, where it had been thrown that morning to protect it from the damp floor, lay the cask of powder.

All realized at once their terrible danger.

"It's too late to outen the fire," cried Barnabas. "The explosion may come any moment! Jump for your lives!"

Just then the flat swung over the falls, quivered and tossed amid the rocks and waves, and darted on to the deep and sluggish water below.

Barnabas and Cutbush sprang past the flames to the bow, the former taking Molly in his arms, and the latter grabbing his wife. They and Cato sprang into the river at the same time that McNicol and the two lads jumped from the stern, and as hard as they could the whole party swam out toward mid-channel, scarcely heeding the two shots that were fired at them from the cover of the bank. They safely gained a cl.u.s.ter of rocks with a fringe of gravel at the base, and from behind this shelter they turned to watch the blazing flat as it drifted by at a distance of twenty feet.

[Ill.u.s.tration: AS THEY LOOKED THE EXPLOSION CAME]

They had hardly looked when a terrific explosion came, casting a red glare all around, and seeming to shake the very bottom of the river. A shower of sparks and splinters fell, and huge waves rolled in all directions. For a second or two the shattered craft bobbed up and down, still blazing here and there. Then it lurched under and disappeared, and darkness and silence settled on the scene.

The situation of the little party was now disheartening. They were stranded on a rocky bar well out in the channel, dripping wet, and without means of safely getting away. They were almost defenseless in case of an attack, and to attempt to swim to sh.o.r.e would be a desperate and foolhardy proceeding under the circ.u.mstances.

But, in the stupor that followed the explosion, the first impression of the castaways--one and all--was a feeling of intense grat.i.tude for the perils they had escaped, and, before they could realize how badly off they still were, a faint shout came floating over the water, and a dark form was seen struggling toward the rocks from a ledge higher up stream and nearer the bank. The swimmer made a gallant fight against the current, and when he finally gained the bar all were surprised and overjoyed to recognize Morgan Proud.

"Given me up, had you?" the plucky fellow exclaimed, as he clasped hands with his friends. "Well, I had a close call. That redskin stuck to me till we went over the falls. Then we parted company, and after I reached yonder rock I didn't spy him again. I was lying over there getting my breath back when the flat took fire and blew up."

"Did you see anything of Simon Gla.s.s?" inquired Barnabas.

"He shot by, swimming like a fish," declared Proud, "and I lost sight of him among the ledges and shoals below my rock. I daresay he got safe to sh.o.r.e."

"I'm sure he did," Barnabas muttered grimly. "So that ruffian is still alive, an' there's likely half a dozen more to keep him company. We're in a pretty tight place, comrades. We can't make the far sh.o.r.e without a boat, an' if we try to swim to yonder bank it means certain death. Gla.s.s an' what's left of his party are prowlin' about on watch now--you heard them fire twice as we were swimmin' away from the boat. An' the worst of it is that we're defenseless."

Immediate investigation proved the old woodman to be right. Nathan and McNicol alone had held on to their muskets when they plunged from the flat, and Mrs. Cutbush had her empty pistol. But all the weapons were wet and useless, and though several of the party had a supply of ball, the only powder that had survived the explosion was a small quant.i.ty in Proud's water-proof horn.

"It's aggravating to think how near we are to the forts and to Northumberland," said Nathan. "Gla.s.s will hardly dare to prowl about the neighborhood long."

"I'm sure he won't leave yet," muttered G.o.dfrey; "that is, if he knows we are here."

"He does, lad," replied Barnabas. "The light of the burning flat showed us up plainly when we reached the rocks. The enemy will do one of two things. The first--which is to come down an' attack us in their canoe up yonder--I consider unlikely. The second is that they'll lie hid in the timber till morning, expectin' we'll believe they've gone then, an'

we'll venture over to sh.o.r.e."

"Hurrah!" exclaimed Nathan, who had suddenly conceived a brilliant idea; "I know how to outwit them nicely, Barnabas, provided they don't try the first of those two plans."

"How, lad?"

"Why, the canoe, of course! I can get it by swimming over to the big island, running a quarter of a mile up the sh.o.r.e, and then swimming quietly down and over to the spot."

"But Gla.s.s or some of the Indians may be up there now," said McNicol.

"No," replied Nathan, "I'm sure they are all straight across here watching to get a shot. And they won't see me leave if I keep down in the water."

"The lad is right," declared Barnabas. "It's a good plan, but a mighty risky one, since we can't be certain of the whereabouts of the enemy.

But I'll go myself."

"I only wish I could," muttered G.o.dfrey, "but I'm a wretchedly poor swimmer."

"No, I'm going," insisted Nathan. "I am long-winded, and ever since I can remember I could swim like a fish."

"Don't risk your young life, my brave boy," pleaded Mrs. Cutbush. "Leave this to some of the older men."

But Nathan refused to yield, and since he was obviously the best fitted for carrying out the undertaking, and the canoe offered the only means of escape for the party from a most perilous situation, a reluctant consent was finally given.

"Take this to cut the canoe loose," said Barnabas, handing the lad a sharp knife. "You'll likely find it anch.o.r.ed by a rope."

Nathan stripped off all but his light trousers, put the hilt of the knife between his teeth, and swam quickly away from the outer edge of the rocks, followed by anxious eyes and heartfelt wishes for his safety.

Packer's Island extended some distance below the falls, as well as above, and the current drifted Nathan nearly to the lower point before he struck shallow water. He waded the remainder of the distance, and then ran briskly up the bushy and sandy sh.o.r.e. The night was dark, but he could dimly make out the jutting promontory when he came opposite it.

He continued five hundred yards further toward the head of the island, and then softly entered the water for his diagonal swim of rather more than a quarter of a mile.

Only his head peeped over the surface and a slight ripple trailing behind him was all that marked the gentle strokes of his arms and legs.

He was soon in mid-channel, from where he could darkly make out the canoe. He swam to a point ten feet above it, and dropped down with the stealth of a mink. As he drew nearer he saw that the craft lay bottom up, and was held by a tow rope running down into the water from the bow.

A couple of half-submerged pine boughs still clung to it.

The lad caught hold of the rope with one hand, and with the other he took the knife from between his teeth. He was about to slash when a husky screech made his blood run cold, and he looked up to see the painted face of an Indian glaring at him within ten inches.

The redskin had evidently been shot in the first volley from the flat, and had been clinging to the canoe ever since, too badly hurt to cry out or to swim to sh.o.r.e. But the sight of a hated foe revived his strength, and on the very second that he made his presence known he sprang at Nathan and clutched his throat.

Down went both, entangled with the rope, and tearing it loose from the anchorage in their struggles. The lad kept one hand free, and while he held his breath he stabbed repeatedly with the knife. After a few terrible seconds the grip on his neck relaxed, and he shot to the surface.

The Indian did not reappear, and Nathan lost no time in striking for the canoe. He swung it around by the dangling rope, and started to swim with it down-stream. Bang! went a musket from the promontory, and a bullet whistled overhead. A second shot followed after an interval of half a minute, but now lad and canoe were on the verge of the open pa.s.sage through the falls. They went plunging down the slope of spray and waves, and three minutes later Nathan skillfully landed his prize on the outer side of the cl.u.s.ter of rocks.

Nathan's safe return was a joyful disappointment, for his friends had given him up when they heard the firing. In a few words the lad told the story of his adventurous swim, and some of the tributes to his bravery made him blush.

"Now let's be off while we've got the chance," cried Barnabas. "I judge, from the shootin', a part of the varmints are still lurkin' above the falls."

So the canoe was turned right-side up and the fugitives hurriedly embarked. They were a little crowded, but that discomfort they did not mind.

Either the enemy's weapons were empty, or else they could not see what was taking place for the darkness of the night. At all events, no shots were fired from the bank, and presently a swifter current took the canoe past the distant lights of Northumberland and out into the broad channel of the main river. The two muskets were reversed and used for paddles, and an hour before midnight the fort at Shamokin was safely reached.

Here the weary fugitives were warmly welcomed, and provided with supper and lodging. Barnabas extracted the packet of papers from his boot, and after drying them over a fire he restored them to their hiding-place.

Much to Nathan's disappointment, no news had lately been received from the army; but the tidings of the Wyoming ma.s.sacre had traveled quickly, and great alarm was felt lest the enemy should advance down the Susquehanna to raid the extensive military stores at Carlisle.

Cato was unfit for travel, and Proud and Cutbush, with the latter's family, decided to remain at Shamokin fort for a few days. McNicol also wished to stay, so that he might visit a married sister who lived at the settlement of Northumberland.

So, at dawn the next morning, Barnabas and the two lads said good-bye to their friends, and resumed their journey down the river in the canoe, satisfied that Simon Gla.s.s would give them no further trouble. Indeed, they were by no means sure that the ruffian had escaped drowning.

Below the point of junction of the two branches the current of the Susquehanna was very swift, and the little party traveled rapidly. They made brief stops at McKeesport and the Halifax fort, where they found the same ignorance prevailing concerning the seat of war. Just as the sun was setting they came in sight of Fort Hunter, which stood on a jutting bluff half a mile above the beautiful Kittochtinny Gap, where the river flings itself over a barrier of rocks as it leaves the mountains behind.

Barnabas hauled the canoe high and dry under the stockade, and led his companions up the bank and around to the gate. A sentry was on guard, and after a little questioning he pa.s.sed the party through. As they went across the yard they observed a horse tied to a post; the animal was saddled and bridled, and showed traces of recent hard riding.