that's the reason!" gasped Betty. "I see now. It's too shallow for big boats except in certain places here. We must get out of her way--she can't get out of ours! Girls, we must start the motor!"
"Then try it with the crank, and let the automatic go," suggested Aunt Kate, practically. "Probably it's out of order. You must do something, girls!"
"Use the crank!" cried Betty, who was holding the wheel over as hard as she could, hoping the tug of the current would carry the Gem out of danger. But the craft hardly had steerage way on.
Mollie seized the crank, which, by means of a long shaft and sprocket chain, extending from the after cabin bulkhead to the flywheel, revolved that. She gave it a vigorous turn. There was no welcome response of throbbing explosions in the cylinders.
"Try again!" gasped Betty. "Oh, all of you try. I simply can't leave the wheel."
The steamer was now sending out a concert of sharp, staccato blasts. Plainly she was saying, loudly:
"Get out of my way! I have the right of the river! You must get out of my way! I can't avoid you!"
