"Yes, and as many more on the steam yacht as Carey can win over. I believe Carey is a rascal and Bossermann is no better." "Yes, but they are only two against over a dozen?" said Captain Barforth. "No, three, for you must remember they have Wingate with them," put in Tom. "That is true." "Can't we get to the yacht somehow?" asked Sam. He was thinking of Grace and the other girls, and wondering what would become of them in case there was a fight on board. "No, that is out of the question," answered Mr. Rover. "All we can do is to remain on the isle and wait developments. If they land we can fight them, but not before." CHAPTER XXVIII A NEW MOVE OF THE ENEMY "Something is up." It was Fred who spoke, only a few minutes after Songbird and the sailor in charge of the rowboat had left the side of the steam yacht. He addressed Hans. "Vot you vos see?" asked the German youth. "Look!" Hans looked and beheld Walt Wingate on the deck, in earnest conversation with the mate. The deck hand was not handcuffed as he had been a short while before, when tramping the forward deck for air, by Captain Barforth's permission. "Carey must haf daken dem handguffs off," said the German youth. "I ton't like dot. Maype dot Vingate make troubles, hey?" The boys watched, and presently saw Bossermann come up and join the pair. Then Bossermann went below to the engine room. Shortly after this the yacht began to get up steam. "We're moving!" cried Dora, as she came to the boys, accompanied by Nellie and Grace. "Oh, what does it mean?" "I don't know," answered Fred. "Can't you find out, Fred?" asked Nellie. "I am sure the captain said nothing about sailing before he went ashore." "I'll find out--if the mate will tell me," answered Fred. He walked over to where the mate stood, close to the wheelhouse, giving directions to the pilot of the _Rainbow_. "Mr. Carey, where are we bound?" he asked, respectfully. "Oh, just going to take a little sail around, to test the engine," was the apparent indifferent answer. "Is the engine out of order?" "Not exactly, but I thought it best to test the shaft. The assistant engineer thinks it is weak." This was apparently a fair enough answer and Fred bowed and walked away. Then he went down the ladder leading to the engine room. He met Frank Norton coming up. There was a look of concern on the head engineer's honest face. "Mr. Norton, is there anything wrong with the engine or the shaft?" asked Fred. "Nothing the matter. Why?" "Mr. Carey said there was, and he is taking a cruise around to test them--so he says." "I don't understand it, Garrison. Everything 0.K." "Are you in charge now?" "No, this is my hour off. Bossermann is in charge. By the way, I see Powell went off after the others." "Yes, and I wish the others were back," answered Fred. He hesitated a moment. "Mr. Norton, I believe you have been with Captain Barforth a long time and that you and he are old chums." "That's right."