n building of the plant to a sort of
glassed-in roof garden. There were several rooms, or compartments,
with glass partitions, sound-proof, and hung with curtains to cut off
any echo. The young people could stare through the windows and see the
performers in front of the broadcasting sets. The girls looked at each
other and clung tightly to each other's hand.

"Oh, Amy!" sighed Jessie.

"If we could only get a chance to sing here!" whispered Amy in
return.

It did not mean much to the boys. And Mark Stratford, of course, had
been here time and time again. A gray-haired man with a bustling
manner and wearing glasses came through the reception room and Mark
stopped him.

"Oh, Mr. Blair!" the collegian said. "Here are some friends of mine
who are regular radio bugs. Let me introduce you to Miss Jessie
Norwood and Miss Amy Drew. Likewise," he added, as the gentleman
smilingly shook hands with the girls, "allow me to present their
comrades in crime, Darry Drew and Burdwell Alling. These fellows help
me kill time over at Yale, to which the governor has sentenced me for
four years."

"Mr. Blair?" repeated Jessie, looking sideways at her chum.

"Mr. Blair?" whispered Amy, who remembered the name as well as Jessie
did.

"That is my name, young ladies," replied the superintendent, smiling.

"You don't know anything about a girl of our age named Blair, do you,
Mr. Blair?" Jessie asked hesitatingly.

"I have no daughters," returned the superintendent, and the expression
of his face changed so swiftly and so strangely that Jessie did not
feel that she could make any further comment upon the thought that had
stabbed her mind. After all, it seemed like sheer curiosity on her
part to ask the man about his family.

"Just the same," she told Amy afterward, when they were in the
automobile once more, "Blair is not such a common name, do you
think?"

"But, of course, that Bertha Blair couldn't be anything to the
superintendent of the broadcasting station. Oh, Jessie! What a
wonderful program he had arranged for to-day. I am coming over
to-night to listen in on that orchestral concert and hear Madame Elva
sing. I would not miss it for anything."

"Suppose we could get a chance to help entertain!" Jessie sighed.
"Not, of course, on the same program with such performers as these the
Stratford people have. But----"

They happened to be traveling slowly and Mark overheard this. He
twisted around in his seat to say:

"Why di