Ravi gives the other man a wary look. "This is very personal before we even get to know each other's favourite drinks," he jokes, but that's just to cope with the nerves of the fact that he's going to have to talk about it and he doesn't like that fact.

"I've got a friend here and he's got a condition that didn't appear until we came out of the fountain again," he says, trying to be blunt without talking about zombies and coming off like a creepy weirdo. "Wherever we were, it was in check. Now, it's not, and if I want to make a drug to hold off his symptoms, I could use some..."

He gestures to the grave, figuring that will say it all.