Peter did not dare to voice the thought, either. Still less did he venture to hint at another thought. Tim, so far, had no great interest in girls; they existed for him as part of the human race, but there would come a time when Tim would be a grown man and would wish to marry. And where among the puppies could he find a mate?

“When you’re grown up, we’ll still be friends,” said Peter. “And who are the others?”

It turned out that Tim had pen friends all over the world. He played chess by correspondence—a game he never dared to play in person, except when he forced himself to move the pieces about idly and let his opponent win at least half the time. He had, also, many friends who had read something he had written, and had written to him about it, thus starting a correspondence-friendship. After the first two or three of these, he had started some on his own account, always with people who lived at a great distance. To most of these he gave a name which, although not false, looked it. That was Paul T. Lawrence. Lawrence was his middle name; and with a comma after the Paul, it was actually his own name. He had a post office box under that name, for which T. Paul of the large bank account was his reference.

“Pen friends abroad? Do you know languages?”

Yes, Tim did. He had studied by correspondence, also; many universities gave extension courses in that manner, and lent the student records to play so that he could learn the correct pronunciation. Tim had taken several such courses, and learned other languages from books. He kept all these languages in practice by means of the letters to other lands and the replies which came to him.

“I’d buy a dictionary, and then I’d write to the mayor of some town, or to a foreign newspaper, and ask them to advertise for some pen friends to help me learn the language. We’d exchange souvenirs and things.”

Nor was Welles in the least surprised to find that Timothy had also taken other courses by correspondence. He had completed, within three years, more than half the subjects offered by four separate universities, and several other courses, the most recent being Architecture. The boy, not yet fourteen, had completed a full course in that subject, and had he been able to disguise himself as a full-grown man, could have gone out at once and built almost anything you’d like to name, for he also knew much of the trades involved.

“It always said how long an average student took, and I’d take that long,” said Tim, “so, of course, I had to be working several schools at the same time.”

“And carpentry at the playground summer school?”

“Oh, yes. But there I couldn’t do too much, because people could see me. But I learned how, and it made a good cover-up, so I could make cages for the cats, and all that sort of thing. And many boys are good with their hands. I like to work with my hands. I built my own radio, too—it gets all the foreign stations, and that helps me with my languages.”