'The Vatican Secret Archives' will publish

'The Vatican Secret Archives' is 252 pages long and contains a melange of text and colour pictures. You can buy the collector's edition in English, Italian, French or Dutch. It starts from the Liber Diurnus Romanorum Pontificum (a book of formulas used by the Papal Chancellory towards then end of the ninth century) and gradually bringing you up to date.

The book pauses intermittently on various compelling features, such as a letter from Mary Queen of Scots to Pope Sixtus V, and works from a number of saints including St. Teresa of Avila. But perhaps the most eye-catching entry of all is a letter from Pius X to Hitler.

The standard text sells for $100 but if you want something a little bit special, it requires a little bit more. €4,950 to be precise. Encouragingly though, there are a few reasons why the limited edition merits its price tag.

Firstly, only 33 will be made, and the owners of those 33 copies will be given the opportunity to make a personal visit to the archives themselves. For proof of authenticity, every collector's edition will be numbered stamped and certified.