"You'll find that out later, Porter. Now keep quiet,--if you know when you are well off."
"I want to know now. You have no right to treat me in this fashion. I'll have you and Doctor Montgomery put in jail for it."
"You shut up!" cried the stranger, and he gave Dave a shove that sent him back on the bed. "You make any more noise and I'll quiet you in a way you won't like!" And then the fellow left the room again, and the door was locked as before.
Feeling that he might be attacked and seriously injured if he kept up the noise, Dave remained quiet, and thus the remainder of the afternoon passed. As night came on the room became dark and extra cold, and he shivered in spite of himself.
"If they leave me here all night I'll be frozen stiff," he thought, grimly. "Oh, why didn't I tell Roger and Phil where I was going! They might come to the rescue!"
After another wait Dave heard more talking below, and then three persons came upstairs and into the room.
"Now, you keep real quiet and you won't get hurt," said the person who had spoken before. "If you start to raise a row--well, you'll wish you hadn't, that's all."
"What are you going to do?"
"Keep quiet, and you'll find out before very long."
"Do you know this is a very high-handed proceeding?"
"Shut up!"
The tone was extra sharp, and Dave received a rough shake of the shoulder. Not knowing but what he might be knocked down, he relapsed into silence.
Presently his feet were unfastened, and he was led out of the room and down the stairs. Then the party made its way to the rear of the house, and went outside.
"Now we are going to give you a little sleigh-ride for your health," said the person who had spoken before.
As there was no snow on the ground Dave felt this must mean a ride on the river, and he was not mistaken. A horse and a low box-sleigh were at hand, and into the turnout Dave was lifted, the fellow who had spoken getting on one side of him and somebody else on the other. Then still another party took up the reins, and started to drive off, over the ice, which was just thick enough to bear the weight of such an outfit.
Although Dave's arms were tied to his sides, he could move his hands a little, and he managed to get hold of a good-sized pin, which had been fastened to a corner of his overcoat. As the sleigh moved over the smooth surface of the river he resolved to make an effort to learn the identity of the silent fellow beside him, and so moved the pin around, and shoved it towards the individual as far as possible.
"Ouch!" came the sudden exclamation, as the point of the pin reached its mark, and the fellow leaped partly to his feet. "What in thunder----" And then the speaker broke off short.
"I know you, Link Merwell!" cried Dave. "I thought all along it was you."
"I'm not Merwell!" growled the fellow, in a deep voice. "Don't you dare to stick me with that pin again, or I'll mash you!" And then he refused to say any more. But he gave Dave's arm such a pinch that it was black and blue for a long time afterwards.
With the bag over his head, Dave could not hear very well, yet he felt tolerably certain that the fellow was Link Merwell, and if this was so, then most likely the driver of the sleigh was Nick Jasniff. But who the third party could be was still a mystery.
"Some old enemy I have forgotten," reasoned the captive. And then he wondered where he was being taken, and for what purpose.
After a ride of half an hour the sleigh came to a halt, and Dave was ordered to get out. Then he was marched up a steep bank and up some steps. A door was opened, and all of the party entered a building of some sort. He was placed in a room and tied fast to a ring fastened in the floor.
"Now you behave yourself and you'll soon be freed and treated to a hot supper," said the man who appeared to be the spokesman for the crowd. "But if you make a row you'll not be freed, and you'll not get a mouthful."
Then Dave was left alone once more, and all three of his captors apparently left the building.
The room was warm, and for this the captive was grateful. A chair had been placed for him to sit upon, so he was fairly comfortable. An hour passed and during that time all was silent. Then somebody came in and started to release his arms and take the bag from his head.
It was a man, tall and muscular, and Dave felt sure he had seen him before, but where he could not remember. The man wore a mask, made of a handkerchief with holes cut in it for his eyes.
"Sorry I can't let you go just yet," he said. "But here is something to eat and to drink." And he pointed to a table, upon which rested a lamp, for it was now late in the evening and dark. On the table was a cup of hot tea and several cheese sandwiches and a small baker's pie.
"Well, I'm hungry, that's certain," said Dave, grimly. "And if I've got to stay here I might as well eat."
"That's the sensible way to talk," answered the man.
"When are you going to let me go?"
"I can't say yet--most likely in the morning."
"Why did you bring me here?"
"Just for fun."
"You've taken a lot of trouble for your fun," said Dave. He did not believe the man's statement.
"Eat your supper, Porter," growled the man, and sank down on a chair close to the door. "No funny work now, mind you!" And he brandished the very stick Dave had carried for self-protection.
There was no help for it, and sitting down to the table Dave began to eat and to drink. The sandwiches were fresh, and so was the pie, and as the ride in the keen air had given him an appetite, he disposed of them quickly. The tea tasted rather bitter, but he was dry and speedily drained the cup. The man watched him drink, with evident satisfaction.
"Now you had better lie down and try and get a little rest," said the fellow of the mask. "When I want you I'll call you." And so speaking he left the room, locking the door after him.
As soon as the man was gone Dave tried to loosen the rope that bound his feet together. It was a hard task and took some time, and bending over seemed to make his head swim. When he straightened up his head grew even more dizzy, and almost before he knew it he was staggering around.
"What a queer sensation!" was his thought. "What in the world is the matter with me?" And then like a flash came the answer. "That tea! It must have been drugged!"
The captive was right in his surmise. The tea had been drugged, and soon poor Dave felt so dizzy he had to rest on the bed. He tried several times to rouse up, and then his senses forsook him completely.
Dave had been unconscious for about a quarter of an hour when the man came in, looked at him, and shook him. Then he went below.
"Well, we've got him," he said to the others. "He is practically dead to the world."
"Good!" was the answer. "Better bring him down right away. We want to get this job over."
CHAPTER XXVI
A DASH FOR LIBERTY
When Dave regained his senses he found himself in the tonneau of a big automobile that was speeding swiftly over a dark country road. On either side of him sat a person who was masked, and in front were two persons whose faces he could not see. His hands were tied behind him, and his ankles were made fast to the foot-rest in the bottom of the tonneau.
He wondered where he was being taken, but knew it would be useless to ask any questions. How long he had been unconscious