Book #8 in the Forensic Handwriting Mystery Series:

Eighteen-year-old Monica has lived a sheltered life. Joining an archaeological dig in Egypt was a dream come true, and romance an unexpected bonus. But when she goes missing with an archaeologist whose shady past spills into the present, the desperate search takes her aunt Claudia around the world. Unexpectedly, Claudia’s skills as a forensic handwriting expert are required to help foil a deadly terrorist plot in which Monica may become a casualty.