I'll stake my life on that.

He's as true to me as I am to myself; and, anyhow, there are things in this Krool couldn't know." He tossed the paper into the fire and watched it burn.
He had talked over many, if not all, of these things with Jasmine, and with no one else; but Jasmine would not gossip.

He had never known her to do so.

Indeed, she had counselled extreme caution so often to himself that she would, in any case, be innocent of having babbled.

But certainly there had been leakage--there had been leakage regarding most critical affairs.