After they finally packed up their car and drove off, I walked across the street with my dish towel to help Lena clear the table. She stood at the kitchen sink with soap bubbles up to her wrists, staring out the window at the dark street. Without turning around, she asked me if I still knew that lady at First County Credit Union. I told her I did, that my younger sister Brenda had worked the loan desk there for twenty nine years and knew every family in three counties. I asked her why she wanted to know. Lena reached under the microwave and pulled out that grease stained spiral notebook. Tucked into the back pocket was a pre-approval letter dated six weeks earlier. It was not for Brian and Lena. It was for Lena Marie Sutton only. My mouth went dry as old dust. I looked at the figures printed on the letterhead. I had spent forty years paying a mortgage on a house that needed a new roof every decade, and I knew what those numbers meant. I looked at her and asked her how much she actually had saved. She turned around, wiping her hands on her dish towel, and looked at me with those pale blue eyes that never seemed to miss a single thing in the room. She said, calm as reading a recipe out of a church cookbook, enough if the seller takes six thousand under asking. I will admit something ugly about myself right then. Part of me had underestimated her too. I looked at her faded jeans and her hair pulled back with a rubber band, and I thought she was just a tired girl who was doing her best to keep her head above water. I did not understand that she was building a fortress one seventeen cent coupon at a time.