Therefore, I would rather that you were kept out of it, altogether.

I shall want you here.

In my absence, there must be somebody to look after things.
"Mind that rascal John Dormay does not put his foot inside the house, while I am away.

That fellow is playing some deep game, though I don't quite know what it is.

I suppose he wants to win the goodwill of the authorities, by showing his activity and zeal; and, of course, he will imagine that no one has any idea that he has been in communication with this spy.