The next minute, however, his delight changed to a groan of dismay as Hank, unable to control himself, crashed, full tilt, into the stove. With a deafening clatter, like that of a mad bull careening round a tinware shop, the heater and its long pipe, came toppling in a sooty confusion to the ground. Red-hot coals shot out in every direction.

In the midst of the wreckage sprawled the unlucky bully, his features bedaubed with black. Through this mask his look of puzzled rage at his defeat came so comically that Ned and Herc could not restrain themselves, but, even in the face of the disaster to the store stove, burst into uncontrollable fits of laughter. In the meantime some one hurled a bucket of water on the coals, and the bully was drenched.

The onlookers, their risibilities also tickled by the downfall of the bully, and the noisy demolition of the stove, joined in the merriment and the laden shelves of the store were echoing to a perfect tempest of laughter when suddenly the rear door opened and Paul Stevens entered. A look of dismay appeared on his lean features as his eyes lighted on the wreckage.

With him was another figure whose unexpected appearance caused the boys' faces to assume almost as dismayed a look as the countenance of the storekeeper.

"Grandfather!" gasped Ned, as his eyes encountered the angry glare of the newcomer's pale orbs.

"Yes,—grandfather," snapped the other, whose weather-beaten face was adorned with a tuft of gray hair on the chin, in the style popularly known as "the goatee."

"What have you got to say in explanation of this?"

As he rasped out this query in a harsh, rusty voice like the creaking of a long disused hinge, old Zack Strong pointed to the wreckage. From the midst of it was rising the bully, plentifully besmeared with soot, but doing his best to maintain a look of injured innocence.