My entry for this month's Knights of MicroFiction competition on on Jessica K McKendry's blog.

Prompt: Write a flash fiction in 200 words or less using the phrase 'The sky darkened.' And for an added challenge, include a sound that surprises one of your characters and a foul smell.

Coming in at 197 words, here is my attempt. Feel free to leave a review.

The Sky Darkened

At first I thought the sound was thunder, rumbling somewhere in the distance. I thought nothing of it of course. We were hit by storms all the time in these regions. But I felt it in the earth beneath my feet when the sound got a little louder and I ran into the next room, searching for my little brother. He was playing with his friend. They were building a house of cards together on the living-room floor.

"Simon, Bobbie, are you both alright?" I asked, trying to keep my voice steady.

They looked at me curiously; unaware of the strange situation around them, when suddenly the rumbling noise jolted our house. Their half-built house of cards fell, and the ancient wooden stumps that held our house above the ground splintered. The television fell off its stand with a crash and the boys yelped in shock. A hissing filled my ears and the air became hazy as a gas-pipe somewhere cracked open. The toxic smell of something that was not oxygen filled my lungs. The sky darkened. I looked about frantically, only to see a cloud of smoke rising from the town's neighbouring volcano. It was alive.