"Good enough," was the response.

"Yes, and it's dead easy."

"What is it?"

"I'll go over opposite the grand stand; you fellows follow me. Come up offhand and I'll show where a big haul lies right in sight."

The rogues had struck a lead and so had the two sharp-eyed detectives who were playing such a neat game.

"Cad," said Oscar, "we've got a bite."

"Yes, I felt the nibble."

"It's a good thing, sis, to locate a rogue."

"Indeed it is."

"We have not chummed in vain."

"So it would appear."

This little bit of side talk was carried on while the two detectives maintained the role they were enacting, and a little while later they saw the three join each other and beheld them as furtively they watched their antic.i.p.ated prey.

"We've got three bites, Cad."

"I see them."

"What shall we do?"

"Don't ask me to suggest, Oscar. No one can beat you in laying out plans."

"We'll leave here."

"And learn if they follow?"

"Yes."

"That would be my idea."

"Where shall we go?"

"We will give them a chance to follow us. We will go to the beach."

Oscar and Cad did not start right off--they were too smart for that.

They were playing a great game. They did not see the three men; they did not know they were being watched. Oh, no, they were too absorbed in each other and the fun they were having and the winnings they were raking in.

It was a strange incident, but one that often occurs. Oscar was not betting to win. He was merely betting as a "guy," and, as intimated, it often happens that the careless win where the careful and posted lose. A race had just been run and a messenger boy returned with the tickets he had cashed, and the girl pulled out a big wad of bills and added the winnings to her roll. The three observers noticed that she carried the bulk of the money, and one of them said:

"Great sea waves! what a wad she has got!"

"And here we are, chummies, dead broke--not been able to make a bet."

"Not a bet," came the doleful refrain.

"We'll bet to-morrow," said one of the men with a knowing wink.

"That depends."

"On what?"

"They may have a coach down here and outride us."

"Don't you believe it. That chap is too happy. He'll have the gal down to the beach for a supper. Good enough, we will take our supper later on. He'll treat; yes, we'll dine with him without an invitation--see?"

"I don't see it yet."

"Well, just watch. Aha! what did I say? They've had enough of the race; they are going. Good enough; I'll bet my share of the swag they go for a ramble."

"How will we manage it?"

"We'll just lay low and learn what our chances are. They are getting very reckless, they are. Eh! the girl may want his watch and sparkles.

If she does she will lead him away off for a long walk. She'll nip the sparkles and the watch, and then, my covies, what will we do?"

"We'll nip her, eh?"

"You bet. Now just watch. There they go. Who was right, eh?"

"I reckon you were, old man."

"You bet I am, every time. Ah, we're in luck."

Oscar occasionally got a sly chance to glance at the three thieves, and so cute was he, and such a face reader, he could almost have repeated their talk without hearing a word of it. He read their conversation on their well-marked faces.

"Let's go, Cad. We've got them well hooked. They have seen your wad; that's what they are measuring."

The girl t.i.ttered. It was her way of working off her excitement in view of the adventure she knew they were to pa.s.s through; and indeed a very startling adventure was to crown the incidents of the day and night.

Oscar and Cad left their seats and had wandered like a pair of happy young lovers toward the exit gate, and they were the observed of all observers. Many remarks, pertinent and characteristic, were made concerning them, and yet, seemingly unconscious that they were attracting any attention at all, they moved along. Upon reaching the platform they met a train that had just arrived from the city, and boarded it to make the short run to the Island. And all the time they maintained their frivolous demeanor, but four sharp eyes were on the alert, and Oscar observed:

"They are swallowing the bait."

"Yes, we've got 'em."

It's strange, but about the same idea ran through the minds of the three rogues. They had feared that their game might take a train to the city, and when they saw them board the train bound for the Island the man who had spotted the game said:

"What did I tell you, covies?"

"They are going to the beach."