Nan, Dickon, their older brother Adam and Dick Whittington himself are the central characters in a colorful novel, set in the London of Whittington's mayoralty, the Lollard plots and King Henry V's first flushes of victory in France. Orphaned in youth, Nan and her brothers live with the grocer John Sherwood, a great friend of Whittington. As a consequence they are all extremely well up on current events and, when a Lollard uprising threatens to imperil the city, Whittington uses them, especially Dickon, as informers. Dickon becomes a mercer's apprentice and is directly involved with a Lollard trick. Nan, though she must stay at home, talks frequently with Whittington, and Adam who wants to become an apothecary has some questionable dealings with an alchemist, but later proves his loyalty in King's army. By the author of Nicholas and the Wool Pack (1952) this is lively, authoritative period fiction.