what request does Victor make in his response letter to Elizabeth ? Chapter 22 Question

He receives a letter from Elizabeth, who says that she is longing to see him. She expresses regret that he has suffered so terribly, and tells him that if his unhappiness is related in any way to their impending marriage, she will gracefully leave him to the arms of another.

Victor is reminded of the creature's threat to be with him on his wedding night. He decides that if the creature succeeds in murdering him, he will at last be at peace; if, on the other hand, he triumphs, he will be able to enjoy both freedom and life with Elizabeth.

He tells her that he has a story to tell her, and he requests that she not question him until he's ready to talk to her; quote below....

"In this state of mind I wrote to Elizabeth. My letter was calm and affectionate. "I fear, my beloved girl," I said, "little happiness remains for us on earth; yet all that I may one day enjoy is centred in you. Chase away your idle fears; to you alone do I consecrate my life and my endeavours for contentment. I have one secret, Elizabeth, a dreadful one; when revealed to you it will chill your frame with horror, and then, far from being surprised at my misery, you will only wonder that I survive what I have endured. I will confide this tale of misery and terror to you the day after our marriage shall take place; for, my sweet cousin, there must be perfect confidence between us. But until then, I conjure you, do not mention or allude to it. This I most earnestly entreat, and I know you will comply."