"Of course," he answers instantly, because what else would he say at this time? Anyway, there isn't anything he'd particularly like to lie about, he doesn't think; he's weary of lying, weary of having to hide things, hide himself. If he comes back to Watson, he doesn't want it to be under false pretenses; he doesn't to lie to Watson and lose him over something that's less significant than his faked death.

"Anything, Watson."