“The trouble is that the water doesn’t do much good on the paint and oil,” exclaimed Professor Jeffer. “Sand or dirt would be better.”

“Here comes a chemical engine!” cried Andy. “Maybe that will do some good.”

“It will do more good than throwing water,” said the old scientist.

The chemical engine got into action without delay, and as the chemicals were forced down the hatchway the smoke became even thicker than before. But the tongues of flame died down, which the boys took for a good sign.

Barwell Dawson was not on hand, he having gone to Boston on business.

“If the vessel isn’t saved, it will be an awful blow to him,” was Andy’s comment.

The boys continued to work, and so did the sailors and the firemen. Thus an anxious quarter of an hour passed. Then the chief of the fire department happened to pass Chet.

“Will the vessel be saved?” asked the lad.

“Sure thing!” cried the old fire-fighter. “But it’s a blaze hard to get at. If a man tried to go down there, he’d be smothered in a minute.”

Nevertheless, some of the hook and ladder men went into the engine room, and there chopped a hole through a bulkhead into the hold. Then more chemicals were used, and more water, and soon it was announced that the fire was under control. A little later the smoke cleared away, and the firemen went below, to put out any stray sparks.