The vast, barnlike length of the old bridge gleamed spectrally in the moonlight, and I saw that the ties were safe for at least a few feet within. Entering, I began to use my flashlight, and was almost knocked down by the cloud of bats that flapped past me. About half-way across there was a perilous gap in the ties which I feared for a moment would halt me; but in the end I risked a desperate jump which fortunately succeeded.