“Or what?”

“You might walk back. It’s only five miles.”

“In all this mud?” cried Duncan.

“It isn’t so bad on the track; and it’s the safest way. If any one sees you walking, it won’t hurt, because you’ve got a right to walk where you want to.”

“That’s true,” said Duncan. “Well, I guess I’ll walk. What are you going to do?”

“I got permission for the marshes. I suppose I ought to go.”

“Go ahead!” answered Duncan. “There comes your car. I’ll see you when you get home.”

Sam vaulted the fence, stopped his car, and got in. Professor Towle fastened on him a questioning glance as he sat down.

“We were wondering what had become of you,” said the teacher, kindly. “You went on ahead?”

“Yes, sir,” answered Sam, demurely.