This experience happened to me at the age of 13, I was moving close to the Thames River in London. Me, my mother, and my older brother, whom was 18. We had two dogs, Chewy our Chow Chow, and Marco our black Labrador.
After a few weeks of moving into our new home, we had neighbors knock at the door to kindly welcome us, it was close to 9pm, and seeing as this was in mid-winter, it got dark much earlier. Without thinking, I answered the door without locking the safety gate in the kitchen, and both dogs charged across and out the door, I watched helplessly, screaming their names as they raced off into the darkness of the cold winter night.
Gathering warm clothes both me and my brother set out to look for them, whilst my mother stayed at home in case of their return. By now I was in tears, we searched along the river bed, hunting in the tall grass, and our greeting neighbors searched the meadow. Hearing a yelp I noticed Chewy, our Chow Chow sprinting in our direction, jumping up at us as if she was happy to see us, looking up I expected Marco to run forward, And I did, I saw a dog in the distance, I called out "Marco!?" though the thing didn't move, the dog looking beast just stood there, with its back turned to us, just sitting and staring out onto the river. I patted my brother's shoulder, "There's Marco!" I said excitedly, and began trudging forward, "Come on Marco!" I shouted, though my brother pulled me back as the black dog in front of us turned its head in our direction, with horror I noticed it's large, golden eyes, they seemed to be glowing! Though I imagined this was just an illusion, the thing then stood, it was large, about the size of a growing calf (cow), it's legs were skinny, it's body had visible bones, and it hadn't a tail... This wasn't Marco.
I stood there, I was stunned, I had never seen such a creature, "Maybe it's lost" I whispered, and as I did so, the 'thing' lunged towards us, my brother grabbed my hand and quickly pulled us out of its path, Chewy yelped in despair, as it faded into the night. A cody gust of air blew against my neck and a gentle sound... Much like a wolves howl, this brought a chill to my spine that I would never forget, we of course ran straight home to tell my mother, who didn't believe a word of it, by this time it was around midnight and I was ordered to bed. I couldn't sleep of course, I kept seeing that strange, creepy canine in my head, every time I opened my eyes I was expecting to see it sat on the end of my bed, but luckily, it didn't and I drifted off to sleep.
The next morning, I ran downstairs, shouting for Marco, though my mother just looked at me sadly, My brother was sat on the couch with Chewy, "Marco was hit by a car last night, the driver has taken him to the vets, though they also think that he has been attacked by another dog, he has a deep puncture wound on his back leg." it hit me hard, 'another dog?' I still can't believe anything to this present day, I keep looking back to that night when I'm alone to try and figure it out, Marco came home safely with only a broken paw and fractured shoulder, and of course, the large bite wound to his leg, how he got that still remains a mystery, and I haven't had any more sightings of this ghostly dog... My Black Shuck.
(An honest true story written by Shannon Spooner, needing information and help on what this encounter could actually be)