Tower of Melting Point

Been dumping used batteries into my local pond for the past few months as my main pasttime. I thought nothing could go possibly work but recently i've been noticing that the fish are starting to grow limbs, weirdly human limbs at that. Now i'm hearing some terrible noises from outside and i'm just too afraid to check, they for sure want my head on a stake. Please send help all i wanted wanted was a safe space to store my batteries...