At present I am going to keep her under lock and key, and if she is obstinate I am going to flog her."
— from Aladdin of London; Or, Lodestar by Max Pemberton

He kept her up late, and bothered her, and then she got a headache.
— from Herb of Grace by Rosa Nouchette Carey

if you knew how utterly lonely and desolate I feel at this moment, and how you, who separate me from all I love, seem to resemble the image of solitude, of annihilation, and of death itself."
— from The Vicomte de Bragelonne Or Ten Years Later being the completion of "The Three Musketeers" And "Twenty Years After" by Alexandre Dumas

The madman that is trying to shut up Edith, and keep her under lock and key.” “Edith!
— from The Living Link: A Novel by James De Mille

That he Would if he Could , is past all doubt; but if he will take a Word to the Wise , from a Man of the World , he will believe He’s much to blame , and All in the Wrong ; for the Doctor and the Apothecary are in the Committee ; and by good Management , are forward in the Rehearsal of the 5 lively Comedy of the Way to keep Him under Lock and Key .
— from English Caricature and Satire on Napoleon I. Volume 2 (of 2) by John Ashton

"I'd have kept her under lock and key to prevent her warning him," said Gillett viciously.
— from The Mystery of the Downs by Arthur J. (Arthur John) Rees

but my son keeps his under lock and key.
— from What Will He Do with It? — Complete by Lytton, Edward Bulwer Lytton, Baron

On seeing this the King, his uncle, laughed at it, instead of reproving him, and he began with more vanity and pride than a Lucifer, to say to me many things very foreign to that first meeting.
— from History of the Spanish Conquest of Yucatan and of the Itzas Papers of the Peabody Museum of American Archaeology and Ethnology, Hard University. Vol. VII. by Philip Ainsworth Means

So we keep him under lock and key, to prevent his going out; for his son is broken-hearted over this mania.
— from The Eleven Comedies, Volume 2 by Aristophanes

We made arrangements with the owner of a boat-house to pull the yacht in there, and to keep her under lock and key, and, after settling matters with the police to have an eye on her, and see that her contents were untouched until further instructions reached them from Berwick, we went off to continue our journey.
— from Dead Men's Money by J. S. (Joseph Smith) Fletcher