"The Power-House" is a novel by John Buchan, a thriller set in London, England. It was written in 1913 when it was serialized in Blackwood's Magazine, and was published in book form in 1916. The narrator is the barrister Edward Leithen who recurs in a number of Buchan's novels. The urban setting contrasts with its sequel, "John Macnab" which is set in the Highlands.
Edward isn't just any potato--he is an Idaho potato. Edward has some interesting dreams; he escapes from the potato sorting warehouse and begins his adventures. He meets new friends and some characters who are not so friendly. The story shows that being different, and decision making can be important. Edward shares adventures with his new friend, Maris Piper, and they explore new possibilities together.