visitor might not be a little insane.

"Pictures, yes. Listen. I'm James Period. Jim, if you like it better, or just plain 'Spotty.' That's what most of my friends call me. Get the idea? A period is a spot. I'm a Period, therefor I'm a spot. But that isn't the real reason. It's because I'm always Johnny on the Spot when anything is happening. If it's a big boxing exhibition, I'm there. If it's a coronation, I'm there, or some of my men are. If it's a Durbar in India, you'll find Spotty on the spot. That's me. If there's going to be a building blown up with dynamite—I'm on hand; or some of my men. If there's a fire I get there as soon as the engines do—if it's a big one. Always on the spot—that's me—James Period—Spotty for short. Do you get me?" and he drew a long breath and looked at Tom, his head on one side.

"I understand that you are—"

"In the moving picture business," interrupted Mr. Period, who never seemed to let Tom finish a sentence. "I'm the biggest moving picture man in the world—not in size, but in business. I make all the best films. You've seen some of 'em I guess. Every one of 'em has my picture on the end of the film. Shows up great. Advertising scheme—get me?"

"Yes," replied Tom, as he recalled that he had seen some of the films in question, and good ones they were too. "I see your point, but—"

"You want to know why I come to you; don't you?" again interrupted "Spotty," with a laugh. "Well, I'll tell you. I need you in my business. I want you to invent a new kind of moving picture camera. A small light one—worked by electricity—a regular wizard camera. I want you to take it up in an airship with you, and then go to all sorts of wild and strange countries, Africa, India—the jungles—get pictures of wild animals at peace and fighting—herds of elephants—get scenes of native wars—earthquakes—eruptions of volcanoes—all the newest and most wonderful pictures you can. You'll have to make a new kind of camera to do it. The kind we use won't do the trick.

"Now do you get me? I'm going to give you ten thousand dollars, above all your expenses, for some films such as I've been speaking of. I want novelty. Got to have it in my business! You can do it. Now will you?"

"I hardly think—" began Tom.

"Don't answer me now," broke in Mr. Period. "Take four minutes to think it over. Or even five. I guess I can wait that long. Take five minutes. I'll wait while you make up your mind, but I know you'll do it. Five minutes—no more," and hastily getting up off the box Mr. Period began impatiently pacing up and down the shop.

CHAPTER II

A MAN IN THE SNOW BANK

Tom Swift looked somewhat in surprise at his strange visitor. It had all happened so suddenly, the offer had been such a strange one, the man himself—Mr. Period—was so odd, that our hero hardly knew what to think. The moving picture agent continued pacing up and down the room now and then looking at his watch as if to note when the five minutes had passed.

"No," said Tom to himself. "I'm not going to take this offer. There's too much work and risk attached to it. I want to stay at home and work on my noiseless motor for the airship. After that—well—I don't know what I'll do. I'll tell Mr. Period that he needn't wait the five minutes. My mind is made up now!"

But as Tom was about to make this announcement, and dismiss his caller, he looked again at the visitor. There was something attractive about him—about his hasty way of talking, about his manner of interrupting, about the way he proposed matters. Tom was interested in spite of himself.

"Well," he reflected, "I may as well wait until the five minutes are up, anyhow."

Koku, the giant servant, glanced at his young master, as if to ask if there was anything that he could do. Tom shook his head, and then the big man strolled over to the other side of the machine shop, at the same time keeping a careful eye on Mr. Period.

While Tom is waiting for the time to expire, I will take a few minutes to tell you something more about him. Those of my friends who have read the previous books in this series need no introduction to my hero, but those who may chance upon this as their first book in the Tom Swift series, will like to be more formally introduced.

Tom, whose mother had been dead some years, lived with his father, Barton Swift, in the town of Shopton. Mr. Swift was an inventor of prominence, and his son was fast following in his footsteps. A Mrs. Baggert kept house for the Swifts, and another member of the household was Eradicate Sampson, an aged colored man, who said he used to "eradicate" the dirt. He had been with Tom on many trips, but of late was getting old and feeble. Then there was Garret Jackson, an engineer employed by the Swifts. These were all the immediate members of the household.

Tom had a chum, Ned Newton, who used to work in a bank, and there was a girl, Mary Nestor, a daughter of Amos Nestor, in which young lady Tom was much interested.

Eradicate Sampson had a mule, Boomerang, of whom he thought almost as much as he did of Tom. Eradicate was a faithful friend and servant, but, of late, Koku, or August, the giant, had rather supplanted him. I must not forget Mr. Wakefield Damon, of Waterfield, a village near Shopton. Mr. Damon was an odd man, always blessing everything. He and Tom were good friends, and had been on many trips together.

The first book of the series was called "Tom Swift and His Motor-Cycle," and related how Tom bought the cycle from Mr. Damon, after the latter had met with an accident on it, and it was in this way that our hero became acquainted with the odd man.

Tom had many adventures on his motor-cycle, and, later on he secured a motor-boat, in which he beat his enemy, Andy Foger, in a race. Next Tom built an airship, and in this he went on a wonderful trip. Returning from this he and his father heard about a treasure sunken under the ocean. In his submarine boat Tom secured the valuables, and made a large sum for himself.

In his electric runabout, which was the swiftest car on the road, Tom was able to save from ruin a bank in which his father was interested, and, a short time after that, he went on a trip in an airship, with a man who had invented a new kind. The airship was smashed, and fell to Earthquake Island, where there were some refugees from a shipwreck, among them being the parents of Mary Nestor. In the volume called "Tom Swift and His Wireless Message," I told how he saved these people.

When Tom went among the diamond makers he had more strange adventures, on that trip discovering the secret of phantom mountain. He had bad luck when he went to the caves of ice, for there his airship was wrecked.

When Tom made the trip in his sky racer he broke all records for an aerial flight, incidentally saving his father's life. It was some time after this when he invented an electric rifle, and went to elephant land, to rescue some missionaries from the red pygmies.

The eleventh volume of the series is called "Tom Swift in the Land of Gold," and relates his adventures underground, while the next one tells of a new machine he invented—an air-glider—which he used to save the exiles of Siberia, incidentally, on that trip, finding a valuable deposit of platinum.

As I have said, it was on his trip to giant land that Tom got his big servant. This book, the thirteenth of the series, is called "Tom Swift in Captivity," for the giants captured him and his friends, and it was only by means of their airship that they made their daring escape.

Tom had been back from the strange land some time now. One giant he had turned over to the circus representative for whom he had undertaken the mission, and the other he retained to work around his shop, as Eradicate was getting too old. It was now winter, and there had been quite a fall of snow the day before Mr. Period, the odd moving