A Pocket Full of Rye Book by Agatha Christiepremium off white cream pages Stitched binding Matte cover local premium copy Language English Dimensions 5. 5 x 8. 26 inches Genre Mystery, Detective Fiction, Crime Fiction. 198 pages summary In "A Pocket Full of Rye" by Agatha Christie, the story revolves around the murder of Rex Fortescue, a wealthy businessman, who dies after ingesting poison. The nursery rhyme "Sing a Song of Sixpence" and pockets full of rye serve as cryptic clues in the case.