Who did it though? - 'Volunteers'

The dull thuds from the inside weren't following a specific pattern but just from the sounds produced, I could more or less tell which of them were full, half-full, or empty. The sounds started to get more frequent and louder but curiosity got the best of me as I climbed one and opened the lid.

I almost barfed the second time just because of opening another lid.

I didn't need to shine my flashlight inside because even if I did, I was sure that the color of the water wouldn't be as different. The smell was so fucking horrible it even reached Kaley and the rest below. However, it didn't take long before echoing snarls followed the dull thuds which confirmed a few things that got this whole place overrun.

'Who did it though?' I thought to myself.