I will be visiting Houston's Murder by the Book, 2342 Bissonnet, on Saturday, April 4th, from 4:30 to 6. Appearing with me will be Kathryn Lane, author of the award-winning Nikki Garcia thrillers. In Kathryn's latest, REVENGE IN BARCELONA, Nikki Garcia, a private investigator, narrowly escapes life-threatening work in Mexico. With her fiancé, Eduardo Duarte, she travels to Spain only to suspect her assailant has followed them to Barcelona. After witnessing a seemingly unrelated terrorist …