Giant Ghostly Orb in Final House Photo

My mum and dad recently put our old family home on the market. After clearing all the furniture out I suggested to my sister that we take some photos of the 'spooky room' where most of the ghostly activity had taken place over the years. I was hoping we would capture an orb, like the one my dad and I had seen on the baby monitor a few years prior. However, nothing unusual showed up on our photos. A week or so later, the Estate Agents came and took their own professional photos which were uploaded to their website. Lo and behold, the ONLY anomaly on any of their photos (around 12 in total) was not only in the spooky room but in the very same corner that my dad and I had seen the orb in Brody's cot.