And then there were none literary devices

A red herring.

a false lead that draws attention away from the person who really committed thecrime

Allusion

slur on my wife. Best woman in the world. Absolutely. Caesar's wife!

biblical allusion

The day of judgment is very close at hand.

dramatic irony

In the epilogue, the reader knows Scotland Yard investigators' theories of whathappened on Indian Island are wrong because the reader knows the whole story.

Foreshadowing

She didn't like that hook on the ceiling. It drew your eyes, fascinated you...abig black hook

Idiom

He'd cook Seaton's goose all right

Irony

It's only in books people carry revolvers around as a matter of course

Metaphor

Don't you see? We're the Zoo...Last night, we were hardly human anymore. We'rethe Zoo..." (226)