Agatha Christie

The Burden is a novel written by Agatha Christie and first published in the UK by Heinemann on 12 November 1956. Initially not published in the US, it was later issued as a paperback by Dell Publishing in September 1963. It was the last of six novels Christie wrote under the nom-de-plume Mary Westmacott.

At Bertram's Hotel is a work of detective fiction by Agatha Christie and first published in the UK by the Collins Crime Club on 15 November 1965 and in the US by Dodd, Mead and Company the following year. The UK edition retailed at sixteen shillings and the US edition at $4.50. It features the detective Miss Marple.