On days where the weather was hot, much like this one, even ice cream just taken out of the freezer would melt within 10 seconds. Working in a stuffy room certainly didn't help the capability of the personnel — unless you had air-conditioning.
Dr. Tomson Niranarm asked someone to repair the AC ages ago. The ancient, 12,000 BTU Toshiba air-conditioner should've been thrown away by now, but he still used it — even if this was the first time in 10 years the air-conditioner would actually be turned on.
BOOM!!
The noise was nearly earth-shattering as Tomson flipped the air-conditioner's switch. The noise was not melodious, to say the least. It took just a moment before it blacked out the Site's electrical grid. The light bulbs out in the hall exploded in sequence — like an old horror movie.
“Hey!” Researcher Gamma groaned, having lost power in one of the many chemical research labs.
“Tommmmmsonnnnnn!” Famous said in a long, irate drawl, having been rudely awoken by the noise while on break nearby.
Tomson had to do something! He had to turn a switch again, no matter the risk. Without a second thought, he flipped the switch, and-
BOOM!!
We still could not find the cause of the explosion at Site-29. However, we assume the cause could have been one of the Keter-class SCPs. No survivors were found.