Read it through once

“Well, we can’t resk being as long as we ought to, because it mayn’t take very long for Uncle Silas to hear from down there by New Orleans. He’ll hear Jim ain’t from there. Then his next move will be to advertise Jim, or something like that. So we can’t resk being as long digging him out as we ought to. By rights I reckon we ought to be a couple of years; but we can’t. Things being so uncertain, what I recommend is this: that we really dig right in, as quick as we can; and after that, we can _let on_, to ourselves, that we was at it thirty-seven years. Then we can snatch him out and rush him away the first time there’s an alarm. Yes, I reckon that’ll be the best way.”