Now, when a boy falters and says, “you’ll see,” it is generally safe to infer that he is plotting mischief.

Will evidently thought so, for as Steve whisked out of the house and over the gate, he said to himself, “I believe Steve is working up some trick again. And to-morrow is the picnic! Well, Stunner, I’ll just keep an eye on you!”

On reaching home, Stephen found that he could not open the box without tearing it to pieces, and he decided that he would put the fire-crackers, box and all, into the fire.

“That’ll be the easiest way to open the pesky old box,” he said. “Of course the crackers won’t go off till it is burnt, but a rousing old fire will soon burn it.”

Having formed this determination, the boy’s mind was at rest. If, however, he had succeeded in opening the box, he would have found not fire-crackers, but gunpowder; for Will had made another blunder, and given him a box filled with powder. This box belonged to Mr. Lawrence; he having bought it a few days before, filled it with powder, and put it away among his guns. The reader now understands that it was not the box Will thought it was. The reason why Steve could not open it, was because the lid caught with a hidden spring.

If that box should be introduced into the fire, it would make more of a “stir” than fire-crackers, and give somebody a little employment in setting things to rights.

The next day was the picnic. The sun shone bright, and promised a peerless September day. This was agreeable; and the juveniles flocked to the scene in good time, with a hungry look in their eyes—a look that always plays over a boys visage when pursuing his way to a picnic, or “anniversary.” Stephen, of course, was there; full of animal spirits, and with the box straining the lining of his coat-pocket.

A fire was soon lighted on the island, but Steve did not find an opportunity to put his crackers into it so soon as he expected; for, warm as the day was, the little boys crowded eagerly around it, discovering their delight in exultant shouts, and heaping on more brush with never-ending amusement.

Steve idled about patiently a few minutes, and then determined to leave the island for awhile, till the youngsters had either sought some newer source of pleasure, or else burnt their fingers or scorched their garments.

Unknown to Steve, Will, who had guessed how and when the boy intended to use the fire-crackers, was watching him sharply. Will had also discovered the mistake that had been made, and consequently was all the more anxious to keep a watchful eye on Steve. He had planned, moreover, to turn the tables, and play a knavish trick of his own on incorrigible Stephen.