He has betrayed himself to Caryll.

And before we can move in this matter, we must have proofs of a plot to lay before the secretary of state." Lord Rotherby understood, and accounted himself between Scylla and Charybdis, and when that evening Green's messenger found him, he gnashed his teeth in rage at having to allow this chance to pass, at being forced to temporize until he should be less parlously situated.

He returned Mr.Green an urgent message to take no steps concerning Mr.
Caryll until they should have concerted together.
Mr.Green was relieved.

Mr.Caryll arrested might stir up matters against the slayer of Sir Richard, and this was a business which Mr.
Green had prevision enough to see his master, Lord Carteret, would prefer should not be stirred up.

He had a notion, for the rest, that if Mr.Caryll were left to go his ways, he would not be likely to give trouble touching that same matter.