"What have you to do with that?" demanded Drummond, harshly.

"Why, I reckon, Mr. Drummond, you're my prisoner. You won't very easily
go anywhere to-night, without my consent."

"Your prisoner?" demanded the Englishman angrily.

"Yes."

"By what right do you arrest me! What have I done?"

"Well, for one thing, you've tried to injure the captain of the submarine
boat, all because he caught your woman friend at strange tricks on board
the 'Benson.' For another reason, because we suspect anyone who defends
or upholds the spy. Be good enough to step along with me, Mr. Drummond."

"I'll do nothing of the sort," blurted the astounded Englishman

"You'll go all the same," warned Mr. Trotter, first of all displaying
his Secret Service badge, next running a hand back briefly to a revolver
that rested in a hip pocket. "I don't much care, Drummond, whether you
walk with me, or whether I have to send for an ambulance to bring you
along. But you'll go just where I want you to."

The Englishman was too much terrified to reply. Two or three times he
opened his mouth as though to speak, but, instead, merely swallowed.

"Come, now--forward march" advised Mr. Trotter. Drummond, without
allowing himself to hesitate, went away at the side of the Secret
Service man.