(As I explored the swamp biome, I felt like there was something watching me. I didn't see anything, but there were several holes in the swamp's floor - and they weren't from either TNT or a Creeper.) [player]: "These holes...they have acid marks. Probably a Hydra's doing." (I looked around, and then I saw the Hydra's lair. She had dark green scales and three accessories on her back - which resembled the other two heads of a Hydra. Unlike a hydra, she actually has two legs - and she instead has a long, tail-like accessory. However, her lair looked a little damaged - with the same acid marks as the holes outside the lair.) Female Hydra: "What do YOU want, human?"