Miss Barrison produced three bowls full of boiling water and dropped three pellets of concentrated soup-meat into them, while I prepared coffee. And in a few moments our simple dinner was ready--the red ants had been dusted from the biscuits, the spiders chased off the baked beans, the scorpions shaken from the napkins, and we sat down at the rough, improvised table under the palms.

The professor gave us a brief but modest account of his short tour of exploration. He had brought back a new species of orchid, several undescribed beetles, and a pocketful of c.o.o.ntie seed. He appeared, however, to be tired and singularly depressed, and presently we learned why.

It seemed that he had gone straight to that section of the forest where he had hitherto always found signs of the transparent and invisible creatures which he had determined to capture, and he had not found a single trace of them.

"It alarms me," he said, gravely. "If they have deserted this region, it might take a lifetime to locate them again in this wilderness."

Then, very quietly, sinking her voice instinctively, as though the unseen might be at our very elbows listening, Miss Barrison recounted the curious adventure which had befallen the dog and the first batch of apple-pies.

With visible and increasing excitement the professor listened until the very end. Then he struck the table with clinched fist--a resounding blow which set the concentrated soup dancing in the bowls and scattered the biscuits and the industrious red ants in every direction.

"Eureka!" he whispered. "Miss Barrison, your deduction was not only perfectly reasonable, but brilliant. You are right; the pies are for that very purpose. I conceived the idea when I first came here. Again and again the pies that my guide made out of dried apples disappeared in a most astonishing and mysterious manner when left to cool. At length I determined to watch them every second; and did so, with the result that late one afternoon I was amazed to see a pie slowly rise from the table and move swiftly away through the air about four feet above the ground, finally disappearing into a tangle of jasmine and grape-vine.

"The apparently automatic flight of that pie solved the problem; these transparent creatures cannot resist that delicacy. Therefore I decided to bait the cage for them this very night--Look! What's the matter with that dog?"

The dog suddenly bounded into the air, alighted on all fours, ears, eyes, and muzzle concentrated on a point directly behind us.

"Good gracious! The pies!" faltered Miss Barrison, half rising from her seat; but the dog rushed madly into her skirts, scrambling for protection, and she fell back almost into my arms.

Clasping her tightly, I looked over my shoulder; the last pie was s.n.a.t.c.hed from the table before my eyes and I saw it borne swiftly away by something unseen, straight into the deepening shadows of the forest.

The professor was singularly calm, even slightly ironical, as he turned to me, saying:

"Perhaps if you relinquish Miss Barrison she may be able to free herself from that dog."

I did so immediately, and she deposited the cowering dog in my arms.

Her face had suddenly become pink.

I pa.s.sed the dog on to Professor Farrago, dumping it viciously into his lap--a proceeding which struck me as resembling a pastime of extreme youth known as "b.u.t.ton, b.u.t.ton, who's got the b.u.t.ton?"

The professor examined the animal gravely, feeling its pulse, counting its respirations, and finally inserting a tentative finger in an attempt to examine its tongue. The dog bit him.

"Ouch! It's a clear case of fright," he said, gravely. "I wanted a dog to aid me in trailing these remarkable creatures, but I think this dog of yours is useless, Gilland."

"It's given us warning of the creatures' presence twice already," I argued.

"Poor little thing," said Miss Barrison, softly; "I don't know why, but I love that dog.... He has eyes like yours, Mr. Gilland--"

Exasperated, I rose from the table. "He's got eyes like holes burned in a blanket!" I said. "And if ever a flicker of intelligence lighted them I have failed to observe it."

The professor regarded me dreamily. "We ought to have more pies," he observed. "Perhaps if you carried the oven into the shanty--"

"Certainly," said Miss Barrison; "we can lock the door while I make twelve more pies."

I carried the portable camping-oven into the cabin, connected the patent asbestos chimney-pipes, and lighted the fire. And in a few minutes Miss Barrison, sleeves rolled up and pink ap.r.o.n pinned under her chin, was busily engaged in rolling pie-crust, while Professor Farrago measured out spices and set the dried apples to soak.

The swift Southern twilight had already veiled the forest as I stepped out of the cabin to smoke a cigar and promenade a bit and cogitate. A last trace of color lingering in the west faded out as I looked; the gray glimmer deepened into darkness, through which the white lake vapors floated in thin, wavering strata across the water.

For a while the frog's symphony dominated all other sounds, then lagoon and forest and cypress branch awoke; and through the steadily sustained tumult of woodland voices I could hear the dry bark of the fox-squirrel, the whistle of the racc.o.o.n, ducks softly quacking or whimpering as they prepared for sleep among the reeds, the soft booming of bitterns, the clattering gossip of the heronry, the Southern whippoorwill's incessant call.

At regular intervals the howling note of a lone heron echoed the strident screech of a crimson-crested crane; the horned owl's savage hunting-cry haunted the night, now near, now floating from infinite distances.

And after a while I became aware of a nearer sound, low-pitched but ceaseless--the hum of thousands of lesser living creatures blending to a steady monotone.

Then the theatrical moon came up through filmy draperies of waving Spanish moss thin as cobwebs; and far in the wilderness a cougar fell a-crying and coughing like a little child with a bad cold.

I went in after that. Miss Barrison was sitting before the oven, knees gathered in her clasped hands, languidly studying the fire. She looked up as I appeared, opened the oven-doors, sniffed the aroma, and resumed her att.i.tude of contented indifference.

"Where is the professor?" I asked.

"He has retired. He's been talking in his sleep at moments."

"Better take it down; that's what you're here for," I observed, closing and holding the outside door. "Ugh! there's a chill in the air. The dew is pelting down from the pines like a steady fall of rain."

"You will get fever if you roam about at night," she said. "Mercy!

your coat is soaking. Sit here by the fire."

So I pulled up a bench and sat down beside her like the traditional spider.

"Miss m.u.f.fitt," I said, "don't let me frighten you away--"

"I was going anyhow--"

"Please don't."

"Why?" she demanded, reseating herself.

"Because I like to sit beside you," I said, truthfully.

"Your avowal is startling and not to be substantiated by facts," she remarked, resting her chin on one hand and gazing into the fire.

"You mean because I went for a stroll by moonlight? I did that because you always seem to make fun of me as soon as the professor joins us."

"Make fun of you? You surely don't expect me to make eyes at you!"

There was a silence; I toasted my shins, thoughtfully.

"How is your burned finger?" I asked.

She lifted it for my inspection, and I began a protracted examination.

"What would you prescribe?" she inquired, with an absent-minded glance at the professor's closed door.

"I don't know; perhaps a slight but firm pressure of the finger-tips--"

"You tried that this afternoon."

"But the dog interrupted us--"