The standard religious-thriller architecture is evident in McGowan's much-heralded debut, which coincidentally shares similarities with The Da Vinci Code
(e.g., murders, Vatican interference, nefarious secret societies), but mostly the characters sit and talk about biblical history and the search for Magdalene-connected treasure. Biblical dreams and visions plague American Maureen Paschal, author of the bestselling HERstory—a Defense of History's Most Hated
Heroines
. When she travels to France's mysterious Languedoc region at the urging of Magdalene scholar Lord Berenger Sinclair, Maureen finds what has eluded centuries of treasure hunters—the original Magdalene scrolls that detail her love affair with Jesus, their marriage and the crucifixion. Though the author makes no effort to render these gospel excerpts in period prose, they're the most compelling part of a novel otherwise freighted with romance-fiction stylings and unadorned facts numbingly narrated. Originally self-published, this first of a trilogy has already sold foreign rights in 22 countries. 350,000 printing; 15-city author tour. (Aug.)