“Boom-er-oom, a boom-er-oom!
A boom! boom! boom!”—
for they were striking against a rocky wall, and the white cliffs of Dover rose ghostly in the moonlight before them.
The professor threw overboard his last bag of ballast; Puck hid his face in his mother’s dress, while she, in the presence of that mighty danger, sang a hymn. Mrs. Parker was one of the singers in the choir of a church at Paris, and her voice had been much admired; but she had never sung before as she sang now. Her voice was sustained instead of drowned by the roar of the sea, and was re-echoed back from the rocky cliff marvelously clear and pure, as she sang “Save me, O God, from waves that roll.”
Slowly the balloon seemed to climb that sheer, chalky precipice, frightening the sleepy sea-gulls from their nests, but never grazing against the wall, as it seemed as if it inevitably must. Slowly it reached the summit, paused a moment poised over the edge, then swept landward a little way, when the guide-rope (which had been dragging in the water) caught on the rocks, and it stopped. The professor opened the escape-valve, and they alighted from the car, and then walked to the brink of the abyss and, silently and solemnly, looked down.
This was the last of aërial navigation that any of the party ever indulged in. The professor packed up his balloon and went to the United States to exhibit it. Puck Parker left one of his “P.P.C.” cards in the car of the balloon, and his parents were glad enough to get to a land where they did not forever hear the “Boom-er-oom, a boom-er-oom, a boom, boom, boom,” and the “Zim-er-oom, a zim-er-oom; a zim, zim, zim.”
