Amethysts and Arson — Lynn Gardner

When Allison married Bart, she knew theirs would be no ordinary marriage. Bart works undercover for the anti-terrorist agency Anastasia, and Allison is already more familiar with danger and near death than she'd like to be. Now this intrepid and charming duo encounters their most challenging mystery yet.

Bart's uncle, an arson investigator, has been receiving anonymous and mysterious clues to crimes planned but not yet committed. Allison and Bart must call upon Anastasia's resources to stop this madman from killing hundreds of innocent people and destroying a dozen significant historical sites out of some twisted and unexplainable drive for revenge. A dozen bombs have been hidden in sites across the Southern U.S., and in a race against time, Allison and Bart must find and disarm them before they explode.

Another exciting and romantic adventure from the best-selling author of Sapphires and Smugglers.