“Because,” retorted Bob, “we’re—in—on—it!” As the others jumped up he added, “Father’s home and he’s taken a real air mystery case!”

CHAPTER IV
THE SKY SQUAD IS FORMED

Entering Mr. Wright’s library, which the detective used as a reception room for clients, Bob, Curtis and Al could hardly repress their excitement. To share in the possible solution of a real mystery of the airlanes was more than they had really dared to hope for.

Seated opposite Mr. Wright, smiling pleasantly, was the man who had given no other name than Barney.

“Good morning, Mr. Wright.” Curtis Brown greeted the quiet, but cordial father of his two chums. Al added a salute to his father.

“Sit down,” suggested the detective. Bob, Curt and Al ranged themselves along the leather upholstered davenport at the side, where the light was on their faces. Mr. Wright had his room so arranged that only his own place beside the desk enabled him to keep his face in the shadow; clients and other visitors had to show every expression in the light from the two sunny windows.

While Mr. Wright seemed to be deciding how to disclose his plans, Curt compared the two men.

They were of very distinct types. Fred Wright would make anybody think of an ordinary, everyday business man, fairly prosperous, quiet in his manner, affable and cordial in his speech. His calm, serious face was neither severe nor too soft; and while its steel-gray eyes were kindly, they could look through a person, it seemed, and find out, almost, what that one was thinking, or, perhaps, trying to conceal.

Barney, on the other hand, made one think of a working man who had risen to a position of prosperity and influence without being able entirely to shake off his servile, unpolished manner. Although his clothes were expertly tailored, he seemed a little ill at ease in them. What was more, he gave the impression that he knew it!

He was a trifle blustery to cover his feeling of inferiority, Curt decided; and he had a habit of interrupting when another person was speaking. However, this might be due to excitement, Curt thought charitably.