Ten Thousand... what?!

"Look there! I think the sound of wings flapping is coming out of it. And it's also giving me a bad vibe, like I am being preyed upon. There's something strange about it for sure!"  

Amelia said as she pointed at a certain spot in the clouded and gloomy sky, which looked indistinguishable from the colour of the trees.

The gloominess present in the air haunted her too, as she felt that a predator had set its eyes on her, marking her as its prey.

And... she could instinctively tell that the predator who was out to get her was hiding in the massive cloud.

Everyone turned to look at where her finger was pointing. 

A two-hundred meters wide and thirty-three metre long black cloud could be seen. 

It was more than a few kilometres away from their current location, and it was lined with silver that glistened like flashes of lightning.

The worst part is, it was advancing towards them like a port-devouring rolling wave, rapidly and furiously.