But these expeditions were trifles compared with the present one; for this one comprised among its servants the very greatest among the learned; and besides it was to go to the utterly unvisited regions believed to lie beyond the mighty forest—as we have remarked before. How the members were banqueted, and glorified, and talked about! Everywhere that one of them showed himself, straightway there was a crowd to gape and stare at him.
Finally they set off, and it was a sight to see the long procession of dry-land Tortoises heavily laden with savants, scientific instruments, Glow-Worms and Fire-Flies for signal service, provisions, Ants and Tumble-Bugs to fetch and carry and delve, Spiders to carry the surveying chain and do other engineering duty, and so forth and so on; and after the Tortoises came another long train of ironclads—stately and spacious Mud Turtles for marine transportation service; and from every Tortoise and every Turtle flaunted a flaming gladiolus or other splendid banner; at the head of the column a great band of Bumble-Bees, Mosquitoes, Katy-Dids, and Crickets discoursed martial music; and the entire train was under the escort and protection of twelve picked regiments of the Army Worm.
At the end of three weeks the expedition emerged from the forest and looked upon the great Unknown World. Their eyes were greeted with an impressive spectacle. A vast level plain stretched before them, watered by a sinuous stream; and beyond there towered up against the sky a long and lofty barrier of some kind, they did not know what. The Tumble-Bug said he believed it was simply land tilted up on its edge, because he knew he could see trees on it. But Professor Snail and the others said:
"You are hired to dig, sir—that is all. We need your muscle, not your brains. When we want your opinion on scientific matters, we will hasten to let you know. Your coolness is intolerable, too—loafing about here meddling with august matters of learning, when the other laborers are pitching camp. Go along and help handle the baggage."
The Tumble-Bug turned on his heel uncrushed, unabashed, observing to himself, "If it isn't land tilted up, let me die the death of the unrighteous."
Professor Bull Frog (nephew of the late explorer) said he believed the ridge was the wall that inclosed the earth. He continued:
"Our fathers have left us much learning, but they had not traveled far, and so we may count this a noble new discovery. We are safe for renown now, even though our labors began and ended with this single achievement. I wonder what this wall is built of? Can it be fungus? Fungus is an honorable good thing to build a wall of."
Professor Snail adjusted his field-glass and examined the rampart critically. Finally he said:
"'The fact that it is not diaphanous convinces me that it is a dense vapor formed by the calorification of ascending moisture dephlogisticated by refraction. A few endiometrical experiments would confirm this, but it is not necessary. The thing is obvious."
So he shut up his glass and went into his shell to make a note of the discovery of the world's end, and the nature of it.
"Profound mind!" said Professor Angle-Worm to Professor Field-Mouse; "profound mind! nothing can long remain a mystery to that august brain."
Night drew on apace, the sentinel crickets were posted, the Glow-Worm and Fire-Fly lamps were lighted, and the camp sank to silence and sleep. After breakfast in the morning, the expedition moved on. About noon a great avenue was reached, which had in it two endless parallel bars of some kind of hard black substance, raised the height of the tallest Bull Frog above the general level. The scientists climbed up on these and examined and tested them in various ways. They walked along them for a great distance, but found no end and no break in them. They could arrive at no decision. There was nothing in the records of science that mentioned anything of this kind. But at last the bald and venerable geographer, Professor Mud Turtle, a person who, born poor, and of a drudging low family, had, by his own native force raised himself to the headship of the geographers of his generation, said:
"'My friends, we have indeed made a discovery here. We have found in a palpable, compact, and imperishable state what the wisest of our fathers always regarded as a mere thing of the imagination. Humble yourselves, my friends, for we stand in a majestic presence. These are parallels of latitude!"
Every heart and every head was bowed, so awful, so sublime was the magnitude of the discovery. Many shed tears.
The camp was pitched and the rest of the day given up to writing voluminous accounts of the marvel, and correcting astronomical tables to fit it. Toward midnight a demoniacal shriek was heard, then a clattering and rumbling noise, and the next instant a vast terrific eye shot by, with a long tail attached, and disappeared in the gloom, still uttering triumphant shrieks.
The poor camp laborers were stricken to the heart with fright, and stampeded for the high grass in a body. But not the scientists. They had no superstitions. They calmly proceeded to exchange theories. The ancient geographer's opinion was asked. He went into his shell and deliberated long and profoundly. When he came out at last, they all knew by his worshiping countenance that he brought light. Said he:
"Give thanks for this stupendous thing which we have been permitted to witness. It is the Vernal Equinox!"
There were shoutings and great rejoicings.
"But," said the Angle-Worm, uncoiling after reflection, "this is dead summer-time."
"Very well," said the Turtle, "we are far from our region; the season differs with the difference of time between the two points."
"Ah, true. True enough. But it is night. How should the sun pass in the night?"
"In these distant regions he doubtless passes always in the night at this hour."
"Yes, doubtless that is true. But it being night, how is it that we could see him?"
"It is a great mystery. I grant that. But I am persuaded that the humidity of the atmosphere in these remote regions is such that particles of daylight adhere to the disk and it was by aid of these that we were enabled to see the sun in the dark."
This was deemed satisfactory, and due entry was made of the decision.
But about this moment those dreadful shriekings were heard again; again the rumbling and thundering came speeding up out of the night; and once more a flaming great eye flashed by and lost itself in gloom and distance.
The camp laborers gave themselves up for lost. The savants were sorely perplexed. Here was a marvel hard to account for. They thought and they talked, they talked and they thought. Finally the learned and aged Lord Grand-Daddy-Longlegs, who had been sitting in deep study, with his slender limbs crossed and his stemmy arms folded, said:
"Deliver your opinions, brethren, and then I will tell my thought—for I think I have solved this problem."