we'll soon know."

The three hurried to the shed which they could see as they rounded a
turn of the path through the wood. They noticed an elderly man
approaching with a gun on his shoulder. On one arm he carried a game
bag.

"Guess Andy got something for dinner," remarked Jack.

"I hopes so, honey," put in Washington. "I'se got a sort of gone
feelin' in my stomach!"

"Any luck, Andy?" called Mark, when he came within hailing distance.

"Fine," replied Andy Sudds. "Rabbits and quail. We'll have a good
dinner to-morrow."

While Andy entered the living part of the big shed to put away his gun
and game, the boys and Washington kept on to the engine room. They
found the professor, with Bill and Tom, busy fitting pipes to the
small engine which was set up at one side of the structure.

"Come, boys, I need your aid," remarked Mr. Henderson as they entered.
"Take off your coats and pitch in. Tighten up these bolts, Jack. Mark,
you mix up those chemicals the way I taught you, and see that the
dynamo is in working order for Washington to attend to."

In a little while the shop was a veritable hive of industry, and it
resounded to the sound of hammers, wrenches and machinery. In the
background was the big ship, which seemed like two immense cigars, one