Our second transport was scarcely an improvement on the first. Again we threaded the river, which seemed to grow broader and deeper as we drew near its fountain-head, Lake Nicaragua. Upon a height above the river stood a military post, El Castillo, much fallen to decay. Here were other rapids, and here we were transferred to a lake boat on which we were to conclude our voyage. Those stern-wheel scows could never weather the lake waters. We had passed a night on the river boat,--a night of picturesque horrors. The cabin was impossible: nobody braved its heat. The deck was littered with luggage and crowded with recumbent forms. A few fortunate voyagers--men of wisdom and experience--were provided with comfortable hammocks; and while most of us were squirming beneath them, they swung in mid-air, under a breadth of mosquito netting, slumbering sonorously and obviously oblivious of all our woes. If I forget not, I cared not to sleep. We were very soon to leave the river and enter the lake. From the boughs of overarching trees swept beards of dark gray moss some yards in length, that waved to and fro in the gathering twilight like folds of funereal crape. There were camp-fires at the wooding stations, the flames of which painted the foliage extraordinary colors and spangled it with sparks. Great flocks of unfamiliar birds flew over us, their brilliant plumage taking a deeper dye as they flashed their wings in the firelight. The chattering monkeys skirmished among the branches; sometimes a dull splash in the water reminded us that the alligator was still our neighbor; and ever there was the piping of wild birds whose notes we had never heard before, and whose outlines were as fantastic as those of the bright objects that glorify an antique Japanese screen. Once from the shore, a canoe shot out of the shadow and approached us. It was a log hollowed out--only the shell remained. Within it sat two Indians,--not the dark creatures we had grown familiar with down the river; these also were nearly nude, but with the picturesque nudeness that served only to set off the ornaments with which they had adorned themselves--necklaces of shells, wristlets and armlets of bright metal, wreaths of gorgeous flowers and the gaudy plumage of the flamingo. They drew near us for a moment, only to greet us and turn away; and very soon, with splash of dipping paddles, they vanished in the dusk. These were the flowers of the forest. All the winding way from the sea the river walls had been decked with floral splendor. Gigantic blossoms that might shame a rainbow starred the green spaces of the wood; but of all we had seen or heard or felt or dreamed of, none has left an impression so vivid, so inspiring, so instinct with the beauty and the poetry and the music of the tropics, as those twilight mysteries that smiled upon us for a moment and vanished, even as the great fire-flies that paled like golden rockets in the dark. III. ALONG THE PACIFIC SHORE