“What is your plan?”

“Fritz Bloch,” said Prokop, in a low voice, “is our Agent K. He is posing as Prince Zuvor’s servant. He, above all others, desires the death of Zuvor. He has heard so much said in Zuvor’s home — so many statements denouncing our cause-“

“I understand,” interrupted the Red Envoy quietly. “Go on with your scheme.”

“My plan is this,” explained Prokop. “I shall give Agent K one of the new bombs — with the time-clock attachment. He can plant it in Zuvor’s house. Then pouf! It will be the end of the Zuvor and his czarist servant, Ivan Shiskin.”

THE Red Envoy was thoughtful. He seemed to be considering the merits of Prokop’s scheme.

“I shall do this at the meeting,” continued Prokop. “In the presence of all our agents, I shall delegate Agent K to the work. They will be exuberant — “

The Red Envoy held up a crimson-clad hand.

“What happened at Prince Zuvor’s house last night?” he questioned.

“I have not heard,” admitted Prokop.

“There was an elevator accident near there — ” began the Red Envoy.