"The Parson's Tale" seems, from the evidence of its prologue, to have been intended as the final tale of Geoffrey Chaucer's poetic cycle The Canterbury Tales. The "tale", which is the longest of all the surviving contributions by Chaucer's pilgrims, is in fact neither a story nor a poem, but a long and unrelieved prose treatise on penance. Critics and readers are generally unclear what rhetorical effect Chaucer may have intended by ending his cycle in this unlikely, extra-generic fashion.