Lady Jane Grey: A Tudor Mysteryis not a biography. Rather, it is a book about a dynastic and political crisis. The ‘Tudor Mystery’ that Eric Ives has set out to solve is how the ‘legitimate’ Queen Jane, who commanded considerable political support, was overthrown in favour of the illegitimate Mary Tudor in ‘a wholly unexpected political coup’ (1). Viewing Jane’s rule from this angle produces a provocative and revisionist account of the summer of 1553. This alone would make Ives’ book an important piece of scholarship; that he wields an extensive array of archival evidence and provides the most detailed account to date of the succession crisis of 1553 makes this a book that no Tudor historian can ignore.