“Sandy will stop them,” panted Dick, a little to the rear because of his weight. Larry called, over his shoulder, that with two to give battle to, Sandy might need them before they could arrive.

“There’s somebody—on the lawn!” cried Dick, swinging off in that direction. From behind a large tree emerged a figure. Larry and the detective followed at a run. But the man who came quickly forward to meet them gave all three a surprise.

“Tommy!” Larry recognized the pilot.

“Larsen, why aren’t you by your airplane?” demanded Mr. Whiteside.

“I came over to report and get instructions, sir.”

“Why, I gave——”

“Something new has come up, sir. I was waiting there by my ship a good while back, and I heard another one cruising and spiraling, shooting the field, I guess, because he came in and set down. My crate, just the way you ordered, was down by the grove, not in plain sight in the middle of the course. But Jeff set his ship down, left the engine running, and went off. I stayed hid to see what would happen, but when he didn’t come back, I thought I’d better go and find you—and see if it meant anything to you.”

“Jeff’s working with his wife, we think,” volunteered Larry. “Anyhow a woman slipped in and led us out of the hangar and started away in a motor boat, and then she must have come back, because yonder’s the boat——”

“See anything of Mimi?” asked Mr. Whiteside eagerly.

“Haven’t laid eyes on the lady.”