"Well, I've got to get on the shadowy trail to-day," yawned Zeph, as he got out of bed the next morning.
"Where's the shadow, Zeph?" asked Ralph humorously.
"Let you know when I find my quarry."
"Ha, bad as that?" laughed Ralph.
"Oh, you can smile, Ralph Fairbanks," said Zeph resentfully. "I tell you, I'm on a mighty important case and—say, where did you get that?"
"What?"
"That picture!" exclaimed Zeph, picking up from the bureau the photograph of Marvin Clark, given to the young engineer by Fred Porter the day previous.
"Oh, that picture?" said Ralph. "A friend of mine gave it to me. He's trying to find its original, and hoped I could help him."
"Trying to find him?" repeated Zeph with big staring eyes. "Whew! I can do that for you."
"You can?" demanded Ralph.
"I should say so!"
"Do you know the original of that picture then?" inquired Ralph.
"Sure I do—why, he's the person who hired me to be a detective," was Zeph's remarkable reply.
