Yet this was the error into which Professor Challenger had fallen.

"Nurse, let me present you to the famous Professor Challenger."

Professor Challenger has had no time to understand this.

"I expect Professor Challenger may wish to bring a friend or two of his own."

Professor Challenger's experiment was not only finished, it was buried from human sight for ever.

"By the way," he continued, coming back to his chair, "what do you know of this Professor Challenger?"

It is Professor Challenger, who had promised to see us off.

That mission was to test the truth of Professor Challenger's statements.

Professor Challenger drew off the top of the case, which formed a sliding lid.

The character of Professor Challenger was introduced in this book.