I come to ax a favour.

When they summon ye, before lookin' at my body--that'll be past help--go you to the little left-top corner drawer o' my wife's bureau, an' there ye'll find a packet.

You're my executor," says he, "and I leaves ye to deal wi' that packet as ye thinks fit." With that, the farmer rode away home-along, and the very day week he went dead.
The doctor, when called over, minded what the old chap had said, and sending Madam Noy on some pretence to the kitchen, went over and unlocked the little drawer with a duplicate key, that the farmer had unhitched from his watch-chain and given him.

There was no parcel of letters, as he looked to find, but only a small packet crumpled away in the corner.

He pulled it out and gave a look, and a sniff, and another look: then shut the drawer, locked it, strode straight down-stairs to his horse and galloped away.
In three hours' time, pretty Madam Noy was in the constables' hands upon the charge of murdering her husband by poison.
They tried her, next Spring Assize, at Bodmin, before the Lord Chief Justice.