"The weird experience of those two nights and one day in the huge caves of Kong Beng can never be forgotten. The caves were so high that my lanterns failed to reveal the roof. There were hordes of bats, some of them with wings that spread four feet. The noise of their countless wings, upon our intrusion, was like the roar of surf. Spiders of sinister aspect that have never seen the light of day, and formidable in size, were observed, and centipedes eight or nine inches long. In places we waded through damp bat guano up to our knees, the strong fumes of ammonia from which were quite overpowering. "Far back in one of the caverns were those marvellous Hindu idols, beautifully carved in bas-relief on panels of stone, each with a projection at the bottom for mounting on a supporting pedestal. They represent the Hindu pantheon, and are classic in style and excellent in execution. They are arranged in a half-circle, and high above is an opening to the sky which allows a long, slanting shaft of light to strike upon their faces. The perfect silence, the clear-cut shaft of light--a beam a hundred feet long--drifting down at an angle through the intense darkness upon this group of mysterious and half-forgotten idols, stamps a lasting picture upon one's memory. "It is the most majestic and strangely beautiful sight I have ever seen. Coming upon the noble group of gods gazing at the light, after a long dark walk through the cave, gives one a shock of conflicting emotions quite indescribable. One hardly dares to breathe for fear of dispelling this marvellous waking dream. Fear and awe, admiration and a sense of supreme happiness at having a wild fancy turn to reality, all come over one at once. A single glance at this scene was ample reward for all the long days and nights of effort put forth to reach it. I never again expect to make a pilgrimage of this sort, for only one such experience can be had in a lifetime." It is rather surprising that Hindu remains in Borneo should be found at such an out-of-the-way place, but Doctor Nieuwenhuis found stone carvings from the same period on a tributary to the Mahakam. Remains of Hindu red-brick buildings embedded in the mud were reported to me as existing at Margasari, southwest of Negara. Similar remains are said to be at Tapen Bini in the Kotawaringin district.