This is actually book 8 in the series. In the UK the first two novels Angélique: The Marquise of the Angels and Angélique: The Road to Versailles were originally published together in an 800-plus page volume, entitled Angélique. Thus Book 1 and Book 2 so the numbering on various published editions may be confusing.
The Temptation of Angélique was published in English both as a single volume, and in two separate volumes: The Temptation of Angélique, Part 1 : The Jesuit Trap and The Temptation of Angélique, Part 2 : Gold Beard's Downfall.
Information from the Italian Common Knowledge. Edit to localize it to your language.