"Marvelous!" breathed the Iron Boys.
"Slow speed ahead," commanded the skipper. "We are now on the Huron level. Here comes your relief. I hope you boys get a good night's sleep."
"Thank you, sir; good night," answered the lads, starting for their cabin. It had been a most interesting evening for them.
CHAPTER XVI
THROUGH THE ROCKY CUT
FOUR long and two short blasts roared from the whistle of the "Richmond."
It was the private signal of Captain Simms. The ship was bearing down on Port Huron and was at that moment at the mouth of the St. Clair River. The skipper stepped to the door of the pilot-house with megaphone in hand.
"This is where I live," he explained. "My wife always comes out to see me as we pass. See the light there, in that cottage on the river bank? Well, that's where I live when I'm not steamboating. There she comes."