Mr. Stanlock laughed heartily.

"Kidnap me!" he exclaimed. "Well, that's a good one. I thought they only kidnapped kids."

"Father," the girl pleaded; "do be serious with me. I've got something very important to show you, something I forgot all about until Helen reminded me. Helen thinks those men tried to kidnap you, and she's a pretty wise girl, as I've had occasion to find out."

"If Helen said that, she surely must be a wise girl or else she has made a pretty accurate guess," was the mine owner's reply.

"Then they did want to kidnap you?"

"Absolutely no doubt of it. They've got some kind of retreat in the mountains, and planned to carry me off there and keep me prisoner."

"What for?"

"Why, to force me to yield to some of their demands, which are utterly impossible and unreasonable. First, they demand an increase of wages that would force us into a receivership sooner or later and again they demand the adoption of a cooperative plan which eventually would make them owners of the mines, if there were any possibility of it working, and there isn't. It's a most ridiculous hold-up, the responsibility for which rests with a few fanatical leaders of doubtful integrity."

"What do you think of these letters?" Marion asked, handing the two anonymous missives to her father. "I received them by mail at the Institute last night, but neglected to read them until we were all on the train this morning."

As Mr. Stanlock read them, his brow contracted sternly. He could treat lightly any hostile attack on himself, but when danger threatened members of his family or their intimate friends, all signs of levity disappeared from his manner and he was ready at once to meet with all his energy the source of the danger, whether it be human or an element of inanimate nature.