Suddenly his attention was arrested by a sound of shouting and yelling and brawling somewhere, as near as he could make out at the river end of the dock.

“Wonder what’s up?” thought the boy; and then the next minute, “Sounds to me like a lot of firemen cutting up in a riot.”

There was a lull and then the clamor burst out afresh. Loud, angry voices rose, and fierce shouts, as if the men on the dock were in deadly strife.

Jack ran out of his cabin.

As he did so the old watchman came pattering along the steel decks and clambered up the ladder to the superstructure, where Jack was standing.

“What is the matter?” demanded the boy.

“The firemen!” panted the watchman, pointing to the dock.

“Well, what’s the reason of all this racket? Are they fighting?”

“Fighting! They are trying to kill each other!” puffed the old watchman in a scared voice.

The lad knew that the firemen of big steamers are about as hard a crowd as can be found anywhere; but it was unusual for them to be making such a racket so close to the ship. He surmised correctly that some of the men had been ashore on a carouse while the others kept up steam.