“That’s simple enough, anyhow,” I said. “You can warn him and keep him at home.”

“And play their game?” he asked sharply. “If he does not come they win, for he’s the only man that can straighten out the tangle. And if his government are warned he won’t come, for he does not know how big the stakes will be on June the 15th .”

“What about the British Government?” I said. “They’re not going to let their guests be murdered. Tip them the wink, and they’ll take extra precautions.”