Mr. Jackson, Tom went to the engine room. There was a little delay, due to the fact that some adjustment was necessary on the main motor. But at last it was fixed.
"Are you all ready?" called Tom.
"All ready," answered Mr. Damon. The old elephant hunter sat in a chair, nervously gripping the arms, and with a grim look on his tanned face. Mr. Swift was cool, as was Ned, for they had made many trips in the air. Outside were Eradicate Sampson and Mrs. Baggert.
"Here we go!" suddenly cried Tom, and he yanked over the lever that started the main motor and propellers. The Black Hawk trembled throughout her entire length. She shivered and shook. Faster and faster whirled the great wooden screws. The motor hummed and throbbed.
Slowly the Black Hawk moved across the ground. Then she gathered speed. Now she was fairly rushing over the level space. Tom Swift tilted the elevation rudder, and with a suddenness that was startling, at least to the old elephant hunter, the new airship shot upward on a steep slant.
"The Black Hawk flies!" yelled Ned Newton. "Now for elephant land and the big tusks!"
"Yes, and perhaps for the red pygmies, too," added Tom in a low voice. Then he gave his
