Inspired by her coolness and perfect composure, I set the rifle in the corner and opened the door. Sunlight fell in bars through the quiet woods; nothing stirred on land or water save the great, yellow-striped butterflies that fluttered and soared and floated above the flowering thickets bordering the jungle.

The heat became intense; Miss Barrison went to her room to change her gown for a lighter one; I sat down under a live-oak, eyes and ears strained for any sign of our invisible neighbors.

When she emerged in the lightest and filmiest of summer gowns, she brought the camera with her; and for a while we took pictures of each other, until we had used up all but one film.

Desiring to possess a picture of Miss Barrison and myself seated together, I tied a string to the shutter-lever and attached the other end of the string to the dog, who had resumed his interrupted slumbers. At my whistle he jumped up nervously, snapping the lever, and the picture was taken.

With such innocent and harmless pastime we whiled away the afternoon. She made twelve more apple-pies. I mounted guard over them. And we were just beginning to feel a trifle uneasy about Professor Farrago, when he appeared, tramping sturdily through the forest, green umbrella and butterfly-net under one arm, shot-gun and cyanide-jar under the other, and his breast all criss-crossed with straps, from which dangled field-glasses, collecting-boxes, and botanizing-tins—an inspiring figure indeed—the embodied symbol of science indomitable, triumphant!

We hailed him with three guilty cheers; the dog woke up with a perfunctory bark—the first sound I had heard from him since he yelped his disapproval of me on the lagoon.

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 coontie 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."