Strange Happenings

They had been enjoying it when the dog started barking all of a sudden towards the river. Scaringly, it continued barking incessantly. No matter how much its owner tied to calm it down. What more surprising was the fact that none of the friends could make out what it was barking at. There was nothing just the vast river. It was then they saw an object floating their way. The unidentified object was streaming fastly towards them. The dog had been barking on it only. The object was quite big in size, that clearly made it visible from such a big distance.