Read it through once

“I have read your letters to Miss Lucy. Forgive me, but I had to begin to inquire somewhere, and there was none to ask. I know that you were with her at Whitby. She sometimes kept a diary--you need not look surprised, Madam Mina; it was begun after you had left, and was in imitation of you--and in that diary she traces by inference certain things to a sleep-walking in which she puts down that you saved her. In great perplexity then I come to you, and ask you out of your so much kindness to tell me all of it that you can remember.”