"Anything wrong?" asked Frank.

"After 'em! After 'em!" shouted the old man, his face crimson with wrath, as he shook his fist in the air. "Chase 'em, lads!"

"Who? What's the matter, Mr. Fussy?"

"Thieves! That's what's the matter! My automobile!"

"Stolen?"

"Stolen! Robbed! I left it here not ten minutes ago and was startin' out in my boat to fish. I just looked back in time to see somebody drivin' away in it. An outrage!" shouted Mr. Fussy. "After 'em!"

"Why, it's been stolen just a few minutes ago, then?"

"They just went tearin' around the bend before you came in sight. If you look lively, you'll catch 'em. You know my car—it's a big blue Cadillac sedan. Paid twenty-eight hundred for it. Catch them thieves and I'll reward you. Don't waste time standin' here talkin' about it—"

The motorcycles roared and leaped forward.

"We'll do our best!" shouted Frank, as he crouched low over the handle bars.