ook around," Darry said, jumping out, and Burd and Amy went
with him. Mark turned around in the driver's seat to talk with
Jessie.

"You know, it's a funny thing that the girl's name should be Bertha
Blair," the young man said. "I heard you folks talking about her
before, and I said something about it to our Mr. Blair at the factory.
He's had a lot of trouble in his family. Never had any children, he
and his wife, but always wanted 'em."

"His younger brother married a girl of whom the Blair family did not
approve. Guess she was all right, but came from poor kind of folks.
And when the younger Blair died they lost trace of his wife and a baby
girl they had. Funny thing," added Mark. "That baby's name was
Bertha--Bertha Blair. When I told the superintendent something about
your looking for such a girl because of a law case, he was much
interested. If you go over there again to the sending station, tell
the superintendent all about her, Miss Jessie."

"I certainly will," promised the Roselawn girl. "But we haven't even
found Bertha yet, and we are not sure she is here."

Darry and the others had entered the grounds surrounding the stock
farm buildings and they were gone some time. When they came back even
Amy seemed despondent.

"I guess we were fooled, Jess," she said. "There is nobody here--not
even a caretaker. I guess what we heard over the radio that time was a
hoax."

"I don't believe it!" declared Jessie. "I just _feel_ that Bertha
Blair, little Henrietta's cousin, is somewhere here."

"And maybe she can't get away," said Henrietta. "I'd like to help
Bertha run away from that fat woman."

"Let's take the kid in and let her call," suggested Burd.

"Sure you didn't see any aerial, Darry?" Mark asked, showing increased
interest in the matter.

"Not a sign," said Drew, shaking his head.

"That tower----"

"Yes. It would make an ideal station. But I went all around it. I
can't see the roof, for it is practically flat. And if what I
suggested was there, we will have to get above the level of the roof
to see it."

Mark suddenly got out and opened his toolbox. He brought forth a pair
of lineman's climbers.

"Thought I had 'em here. I'll go up that telegraph pole and see what
I can see," and he began to strap them on.

"Good as gold!" cried Burd admiringly. "You have a head on you, young
fellow."

"Yes," said Mark dryly. "I was born with it."

He proceeded to the tall telegraph pole and swarmed quick