The Most Dangerous Animal of All: Searching For My Father and Finding the Zodiac Killer by Gary L. Stewart with Susan Mustafa is slated to go into bookstores in England, Australia, New Zealand, and in other countries in the United Kingdom May 27.

HarperCollins U.K. is publishing the English version of the book with a slightly different cover in trade paperback and e-book. The U.S. version is available in hardback, e-book, and audiobook.

For more information, please visit www.harpercollins.co.uk.