How far would an avid book collector go to obtain a copy of “The Rarest Book in the World?” For a few rapacious bibliophiles, the answer to that question might be—as far as necessary.

Intrigue follows intrigue as you search for clues in John Conlee’s latest novel, again featuring American scholar Charles Bascombe and the spectacular but potentially dangerous Cornwall coast. Who offed the bookseller? Who then threatened the book buyer? And, perhaps, the most intriguing question of all: Who once owned The Rarest Book in The World?