Gaius and Merlin in “Valiant”

It's most odd. Look at this. See these two small wounds? Looks like a snake bite.

How could he be bitten by a snake? He was injured in a sword-fight.

His symptoms are consistent with poisoning. Slow pulse, fever, paralysis.

Can you heal him?

If it's a snake bite, I'll need to extract venom from the snake that bit him to make an antidote.

What happens if he doesn't get the antidote?

Then I'm afraid there's nothing more I can do for him. He's going to die.