Herk could kill leviathan

But…I wanted to be sure. I wanted to prove to myself, both that Khepri’s knowledge, the things that she had taken as fact, and that my own powers were correct. Herakles could not kill Leviathan outright — my power had indicated as such. Khepri’s knowledge said much the same. With enough time and effort? Maybe. Almost certainly. But with one blow? The answer had been no.