"Give us the particulars," he urged. "What did you do when you were taken for a thief?"

"Knocked the cad down!" snarled Bart, smashing his clinched right hand into the open palm of his left.

"That was very proper," assured Merriwell. "You did nicely, my son."

"But I do not feel any the less humiliated. If I had not given him reason to approach me in such a manner, he would not have ventured."

Then Bart related the particulars of his adventure with Snell.

"So, so!" muttered Frank. "That rascal is in this affair. The man in black has chosen a good tool."

"That man is determined to have your ring."

"I should say so. He has been to Professor Gunn and represented that the ring belonged to him." And then Frank took his turn to tell what he had learned from the head professor.

"Well, I never!" cried Bart, as Frank finished. "Why, the scoundrel has the cheek of a brass monkey! He is dangerous, Frank."

"I believe you."