"Say! you don't want much," commented Ned. "But I feel the same way, Tom."

"Then come on out and take a run, and maybe we'll get on the track of an adventure," urged the young inventor. "We won't go far, just twenty or thirty miles or so."

The two youths emerged from the house and started across the big lawn toward the aeroplane sheds, for Tom Swift owned several speedy aircrafts, from a big combined aeroplane and dirigible balloon, to a little monoplane not much larger than a big bird, but which was the most rapid flier that ever breathed the fumes of gasolene.

"Which one you going to take, Tom?" asked Ned, as his chum paused in front of the row of hangars.

"Oh, the little double-seated monoplane, I guess that's in good shape, and it's easy to manage. When I'm out for fun I hate to be tinkering with levers and warping wing tips all the while. The Lark practically flies herself, and we can sit back and take it easy. I'll have Eradicate fill up the gasolene tank, while I look at the magneto. It needs a little adjusting, though it works nearly to perfection since I put in some of that new platinum we got from the lost mine in Siberia."

"Yes, that was a trip that amounted to something. I wouldn't mind going on another like that, though we ran lots of risks."

"We sure did," agreed Tom, and then, raising his voice he called out: "Rad, I say Rad! Where are you? I want you!"

"Comin', massa Tom, comin'," answered an aged colored man, as he shuffled around the corner of the shed. "What do yo'-all want ob me?"

"Put some gasolene in the Lark, Rad. Ned and I are going to take a little flight. What were you doing?"

"Jest groomin' mah mule Boomerang, Massa Tom, dat's all. Po' Boomerang he's gittin' old jest same laik I be. He's gittin' old, an' he needs lots ob 'tention. He has t' hab mo' oats dan usual, Massa Tom, an' he doan't feel 'em laik he uster, dat's a fac', Massa Tom."