Seating himself with a leg overhanging the abyss on each side, and his hatchet slung upon his back, Challenger hopped his way across the trunk and was soon at the other side. He clambered up and waved his arms in the air.

“At last!” he cried; “at last!”

I gazed anxiously at him, with a vague expectation that some terrible fate would dart at him from the curtain of green behind him. But all was quiet, save that a strange, many-colored bird flew up from under his feet and vanished among the trees.

Summerlee was the second. His wiry energy is wonderful in so frail a frame. He insisted upon having two rifles slung upon his back, so that both Professors were armed when he had made his transit. I came next, and tried hard not to look down into the horrible gulf over which I was passing. Summerlee held out the butt-end of his rifle, and an instant later I was able to grasp his hand. As to Lord John, he walked across⁠—actually walked without support! He must have nerves of iron.