Board Thread:Antaeus' Arena: Audience Chamber/@comment-1515612-20170321230658/@comment-33468086-20171031021239

Suppandi wrote: @Jxkekskais: I don't know from where you got the view that Percy can control substances that contain water only in Tartarus.

In the Blood Of Olympus, Percy said,  "Yeah. . . Thing is, as I was choking just now, I kept thinking: this is payback for Akhlys. The fates are letting me die the same way I tried to kill a goddess. And. . . honestly, part of me thought I deserved it. That's why I didn't try to control the giant's poison and move it away from me. That probably sounds crazy." This means Percy could have controlled the poison, but he didn't.

Additionally, what ARandomWriter said - Quote from the Son of Neptune - "  ‘Go on, then, son of Neptune!’ Polybotes taunted. ‘Let me see your power! Does water do your bidding? Does it heal you? But I am born to oppose Neptune.’ The giant thrust his hand under the water. As the torrent passed through his fingers it turned dark green. He flung some at Percy, who instinctively deflected it with his will. The liquid splattered the ground in front of him. With a nasty hiss, the grass withered and smoked. ‘My touch turns water to poison,’ Polybotes said. ‘Let’s see what it does to your blood!’ " This proves that Percy can control substances that contain water, which does include blood.

You got a point. I have forgotten that part