Night28 The Whole Story Part II

I didn't want to surprise or worry the homeowners. I had no idea whether they saw me pull into their driveway or not. I thought it best to at least let them know I was there. Maybe they'd be able to help.
As I approached the front door, I noticed a device locked around the handle. My mother used to work in real estate, and I thought this might be what they use to lock away a key for agents to access. It didn't look quite the same as those I've seen before, and I thought maybe instead it was some sort of alarm.
No doorbell, so I knocked, and knocked, and knocked. I tried to peek into the adjacent windows, but either they were opaque or the inside was completely dark. I looked for other windows to check, and worked my way around to the back of the house. The back porch was the first part of the entire property that seemed to say the house was empty. There was no door, but more than that it looked as though decorations had been removed. And now I saw that many of the windows, still covered by old curtains, were broken. The back porch had a sliding glass door, and I could clearly see that the inside was almost completely empty. A few tables with trivial decorations were left just to fill the space some. I knocked just in case. No answer.