The detective, without any show of excitement, said:

“There they are again!”

“Shall we follow them?”

“It is not very material.”

In astonishment, Barnes cried:

“Surely it is material to follow such sure evidence of the body of a man who has been murdered?”

“Who says that Mr. Field has been murdered?”

“I do—the evidence does.”

“Not to me.”

“Do you mean it?”