I've written the letter—refuse me and I will send it.

“I am so sorry for you, Alan,” he murmured, “but you leave me no alternative. I have a letter written already. Here it is. You see the address. If you don’t help me, I must send it. If you don’t help me, I will send it. You know what the result will be. But you are going to help me. It is impossible for you to refuse now. I tried to spare you. You will do me the justice to admit that. You were stern, harsh, offensive. You treated me as no man has ever dared to treat me—no living man, at any rate. I bore it all. Now it is for me to dictate terms.”